I recently got myself a gaming mouse with 5 buttons, and I am wondering why my game keeps crashing when I try and use the two extra buttons in-world. Anyone know if Minecraft supports these mice?
Try mapping the buttons in the controls. I had one with extra buttons that I just didn't use for much ingame but they didn't crash me.
(Previous post deleted due to Creepy Boomy Doom)
After a bit of testing, it seems the mod whose keys I set the buttons to is at fault. I'll talk to the mod creator later about it. For the meanwhile however, consider this post closed, issue resolved, etcetera.