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    posted a message on Minecraft won't stop the loading screen

    After launching any modpack, I log in, but it won't finish the minecraft launcher loading screen. I logged about 100 hrs in modded minecraft before this started happening, but this has just started happening out of the blue, I've reinstalled the twitch app and all my modpacks, but this still doesn't help.

     

    I've attached a screenie of what the screen looks like.

     

    Any suggestions would be GREATLY APPRECIATED :)

     

    Edit: here is the code from the launcher log

    [15:19:58 INFO]: Minecraft Launcher 1.6.91 (through bootstrap 100) started on osx...[15:19:58 INFO]: Minecraft Launcher 1.6.91 (through bootstrap 100) started on osx...[15:19:58 INFO]: Current time is Apr 18, 2020 3:19:58 PM[15:19:58 INFO]: System.getProperty('os.name') == 'Mac OS X'[15:19:58 INFO]: System.getProperty('os.version') == '10.13.6'[15:19:58 INFO]: System.getProperty('os.arch') == 'x86_64'[15:19:58 INFO]: System.getProperty('java.version') == '1.8.0_241'[15:19:58 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'[15:19:58 INFO]: System.getProperty('sun.arch.data.model') == '64'[15:19:58 INFO]: proxy == DIRECT[15:19:58 INFO]: JFX is already initialized[15:19:58 INFO]: Refreshing local version list...[15:19:58 INFO]: Refreshing remote version list...[15:19:59 INFO]: Refresh complete.[15:19:59 ERROR]: Unexpected exception refreshing profile listcom.google.gson.JsonSyntaxException: duplicate key: null at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:190) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:803) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:768) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:717) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:689) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion(RemoteVersionList.java:32) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:213) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:268) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:255) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:171) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:105) ~[launcher.jar:1.6.91] at net.minecraft.launcher.game.GameLaunchDispatcher.getStatus(GameLaunchDispatcher.java:35) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.checkState(PlayButtonPanel.java:94) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.onProfilesRefreshed(PlayButtonPanel.java:90) ~[launcher.jar:1.6.91] at net.minecraft.launcher.profile.ProfileManager.fireRefreshEvent(ProfileManager.java:100) ~[launcher.jar:1.6.91] at net.minecraft.launcher.profile.ProfileManager.loadProfiles(ProfileManager.java:88) ~[launcher.jar:1.6.91] at net.minecraft.launcher.Launcher$2.run(Launcher.java:183) [launcher.jar:1.6.91] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_241] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_241] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_241] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_241] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_241][15:19:59 INFO]: Refreshing auth...[15:19:59 INFO]: Logging in with access token[15:19:59 FATAL]: Unhandled exception in thread Thread[AWT-EventQueue-0,6,main]com.google.gson.JsonSyntaxException: duplicate key: null at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:190) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:803) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:768) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:717) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:689) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion(RemoteVersionList.java:32) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:213) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:268) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:255) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:171) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:105) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel.checkState(PlayerInfoPanel.java:96) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel$2.run(PlayerInfoPanel.java:78) ~[launcher.jar:1.6.91] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) ~[?:1.8.0_241] at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) ~[?:1.8.0_241] at java.awt.EventQueue.access$500(EventQueue.java:97) ~[?:1.8.0_241] at java.awt.EventQueue$3.run(EventQueue.java:709) ~[?:1.8.0_241] at java.awt.EventQueue$3.run(EventQueue.java:703) ~[?:1.8.0_241] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_241] at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) ~[?:1.8.0_241] at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) ~[?:1.8.0_241] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [?:1.8.0_241] at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [?:1.8.0_241][15:19:59 ERROR]: Unhandled exception in executor com.mojang.launcher.updater.ExceptionalThreadPoolExecutor$ExceptionalFutureTask@1e0ea8bajava.util.concurrent.ExecutionException: com.google.gson.JsonSyntaxException: duplicate key: null at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_241] at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_241] at com.mojang.launcher.updater.ExceptionalThreadPoolExecutor$ExceptionalFutureTask.done(ExceptionalThreadPoolExecutor.java:58) [launcher.jar:1.6.91] at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:384) [?:1.8.0_241] at java.util.concurrent.FutureTask.setException(FutureTask.java:251) [?:1.8.0_241] at java.util.concurrent.FutureTask.run(FutureTask.java:271) [?:1.8.0_241] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_241] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_241] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_241]Caused by: com.google.gson.JsonSyntaxException: duplicate key: null at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:190) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:803) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:768) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:717) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:689) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion(RemoteVersionList.java:32) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:213) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:268) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:255) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:171) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:105) ~[launcher.jar:1.6.91] at net.minecraft.launcher.game.GameLaunchDispatcher.getStatus(GameLaunchDispatcher.java:35) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.checkState(PlayButtonPanel.java:94) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayButtonPanel.onProfilesRefreshed(PlayButtonPanel.java:90) ~[launcher.jar:1.6.91] at net.minecraft.launcher.profile.ProfileManager.fireRefreshEvent(ProfileManager.java:100) ~[launcher.jar:1.6.91] at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:265) ~[launcher.jar:1.6.91] at net.minecraft.launcher.Launcher$2.run(Launcher.java:213) ~[launcher.jar:1.6.91] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_241] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_241] ... 3 more[15:20:00 FATAL]: Unhandled exception in thread Thread[AWT-EventQueue-0,6,main]com.google.gson.JsonSyntaxException: duplicate key: null at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:190) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93) ~[launcher.jar:1.6.91] at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:803) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:768) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:717) ~[launcher.jar:1.6.91] at com.google.gson.Gson.fromJson(Gson.java:689) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.RemoteVersionList.getCompleteVersion(RemoteVersionList.java:32) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getLatestCompleteVersion(MinecraftVersionManager.java:213) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:268) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.CompleteMinecraftVersion.resolve(CompleteMinecraftVersion.java:255) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersionSyncInfo(MinecraftVersionManager.java:171) ~[launcher.jar:1.6.91] at net.minecraft.launcher.updater.MinecraftVersionManager.getVersions(MinecraftVersionManager.java:105) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel.checkState(PlayerInfoPanel.java:96) ~[launcher.jar:1.6.91] at net.minecraft.launcher.ui.bottombar.PlayerInfoPanel$2.run(PlayerInfoPanel.java:78) ~[launcher.jar:1.6.91] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) ~[?:1.8.0_241] at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) ~[?:1.8.0_241] at java.awt.EventQueue.access$500(EventQueue.java:97) ~[?:1.8.0_241] at java.awt.EventQueue$3.run(EventQueue.java:709) ~[?:1.8.0_241] at java.awt.EventQueue$3.run(EventQueue.java:703) ~[?:1.8.0_241] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_241] at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) ~[?:1.8.0_241] at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) ~[?:1.8.0_241] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [?:1.8.0_241] at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [?:1.8.0_241] at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [?:1.8.0_241]

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