Minecraft CurseForge

im having a problem with unifer where im making quarts glass but its changing it straight back to normal glass when i get it in to my inventory ive never used unifier befor so unsure on how to fix the problem any help is appreciated 

im encountering a crash that im unsure how to fix doesnt seem to be any of the mods ive got but java can anyone help sort it out i have been playning with no issues for weeks but today it started to crash and give me this crash log

---- Minecraft Crash Report ----

WARNING: coremods are present:
  MalisisSwitchesPlugin (malisisswitches-1.12.2-5.1.0.jar)
  EnderCorePlugin (EnderCore-1.12.2-0.5.53-core.jar)
  LoadingPlugin (RandomThings-MC1.12.2-4.2.7.jar)
  OTGCorePlugin (OTG-Core.jar)
  Inventory Tweaks Coremod (InventoryTweaks-1.64+dev.146.jar)
  LoadingPlugin (ResourceLoader-MC1.12.1-1.5.3.jar)
  MalisisCorePlugin (malisiscore-1.12.2-6.5.1.jar)
  CTMCorePlugin (CTM-MC1.12.2-0.3.3.22.jar)
Contact their authors BEFORE contacting forge

// There are four lights!

Time: 4/12/19 6:04 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$ValueIterator.next(HashMap.java:1458)
	at net.minecraft.world.chunk.Chunk.func_76623_d(Chunk.java:870)
	at net.minecraft.world.gen.ChunkProviderServer.func_73156_b(ChunkProviderServer.java:269)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:207)
	at net.optifine.override.WorldServerOF.func_72835_b(WorldServerOF.java:39)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
	at java.lang.Thread.run(Thread.java:745)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$ValueIterator.next(HashMap.java:1458)
	at net.minecraft.world.chunk.Chunk.func_76623_d(Chunk.java:870)
	at net.minecraft.world.gen.ChunkProviderServer.func_73156_b(ChunkProviderServer.java:269)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:207)
	at net.optifine.override.WorldServerOF.func_72835_b(WorldServerOF.java:39)

-- Affected level --
Details:
	Level name: pid shaders
	All players: 1 total; [EntityPlayerMP['Jackbigpid4'/330, l='pid shaders', x=-638.88, y=77.53, z=-993.04]]
	Chunk stats: ServerChunkCache: 924 Drop: 20
	Level seed: 1631804451
	Level generator: ID 09 - OTG, ver 0. Features enabled: true
	Level generator options: OpenTerrainGenerator
	Level spawn location: World: (-404,64,-824), Chunk: (at 12,4,8 in -26,-52; contains blocks -416,0,-832 to -401,255,-817), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
	Level time: 288967 game time, 464262 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 23934 (now: false), thunder time: 132702 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:252)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
	at java.lang.Thread.run(Thread.java:745)

ive recently made a modpack and have encountered an issue when placing block if i try to pillar up and i dont jump at the right moment the block places were im stood and pushes me out of the way same as when im flying and pillaring towards me i place a block a bit to close and it puts me in the block and hurts me for half a heart not sure if its a mod ive added or maybe a config i haven't seen

Edit: issue has been solved I derped and didn’t update forge