[MC-115867] Holding ctrl or shift makes mouse 4 and 5 not work

I can't do anything with a reassigned action to mouse 4 and 5 while holding ctrl or shift.
For example pick block does not work with it reassigned to mouse 4 or 5(4th and 5th buttons on my mouse) while holding ctrl or shift.
It happens in singleplayer and multiplayer, survival and creative.

Linked issues

duplicates 1

MC-40227 Mouse Button 4 in combination with a modifier key is detected as Mouse Button 5 Resolved

Comments 6

[Mod] Neko 2017-04-12T18:27:03Z

Does this happen outside of Minecraft?

SantaClausNL 2017-04-12T18:37:23Z

No it only does it in minecraft.

wobst.michael 2017-10-31T20:27:44Z

Please check if the latest development snapshot 17w43b fixes your issue.

pokechu22 2017-10-31T20:31:35Z

Duplicate of MC-40227 (which is in fact fixed in 17w43a).

TheSkillzMaster 2020-04-26T11:51:09Z

hi guys, this glitch is happening to me and i was just wondering if there are any fixes available for 1.8.9

pokechu22 2020-04-26T17:24:23Z

The only fix is to update to a modern, supported version. MC-40227 (which this is a duplicate of) was fixed in 17w43a (1.13), which updated to LWJGL 3. Prior versions of Minecraft used LWJGL 2, which has this bug in it (and is no longer maintained by the LWJGL team). (And, even with mods, backporting the LWJGL update is not feasible, even if you found someone who was willing to work with such legacy versions.)