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

If Mouse Button 4 is mapped to "Use Item/Place Block" the sneak-click functions do not work. The click appears to be ignored as it doesn't trigger the non-sneak function either.

I have not done exhaustive testing, but from what I can tell this only affects Mouse Button 4. Mouse Buttons 2 (of course), 3, and 5 work normally, as do keyboard keys.

Edit: updated Description and Summary to reflect better information

From MC-78394:

"Use Item" bound to NUMPAD0; When I sneak (using the RSHIFT key) I can't shoot a bow, open a chest, or place a block. Basically, anything that requires the "Use Item" function.

Linked issues

is duplicated by 9

MC-49732 Pick Block using MOUSE BUTTON 4 dosent copy NBT data Resolved

MC-66828 Can not pick NBT Block with customized pick block button Resolved

MC-83466 Hotbar Slot Bug during Sneaking Resolved

MC-85342 Shift to offhand/mainhand Resolved

MC-87546 mouse/keyboard bug Resolved

4 more links

relates to 1

MC-78394 "Use Item" not working while sneaking and "Use Item" bound to NUMPAD0 Resolved

Attachments

crash-2013-11-15_18.10.33-client.txt

Comments 15

kumasasa 2013-11-15T06:55:13Z

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt) here.

Brian Conry 2013-11-16T00:12:25Z

Crash report, as requested.

kumasasa 2013-11-16T08:18:34Z

Nothing to see in the crash report.

Brian Conry 2014-01-25T00:40:27Z

Yes, this is still present with Launcher version 1.3.9 and Minecraft 1.7.4

Brian Conry 2014-01-25T00:46:02Z

I also tested with 14w04b and it is present there as well.

5 more comments

Deleted account 2014-05-12T18:53:38Z

Is this still a concern in the current Minecraft version 14w19a / Launcher version 1.3.11 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

marcono1234 2014-05-23T17:05:38Z

Cannot reproduce (have no mouse 4 😞 )
Did it also happened with other buttons?

Brian Conry 2014-07-12T21:37:07Z

I have retested this with 14w28b and confirmed that the bug is still present.

I've also confirmed that, as expected, the behavior is identical between a donkey and a mule.

Further, I have done additional testing and discovered that this seems to be specific to mouse Button 4. Keyboard keys and other mouse buttons (e.g. Button 3 and Button 5) work fine.

Additionally, I've tested and it appears that sneak-Button4 does not work for anything (e.g. placing a hopper attached to a chest). I would have thought I would have noticed that before noticing the problem with donkey chests, but obviously I didn't.

Brian Conry 2014-07-13T17:29:59Z

I'm wondering if this might be related to "[MC-49732] Pick Block using MOUSE BUTTON 4 dosent copy NBT data". They both seem to be cases where Mouse Button 4 doesn't accept modifier keys like the other buttons do.

Torabi 2015-08-28T15:11:04Z

The underlying issue is that ctrl or shift + MB4 is actually detected as MB5. Whether this is a Minecraft issue, or a LWJGL issue, I'm not sure.

Michael Wobst 2017-10-30T20:29:12Z

Can someone please check if this is still an issue in the latest snapshot 17w43b?

Brian Conry 2017-10-31T01:31:57Z

Tested and confirmed to be working properly in 17w43b. I also went back and retested and confirmed that it is still broken in 1.12.2.

Joe Taber 2018-01-15T16:38:55Z

This is also broken for me in 1.12.2, but appears to be fixed in 18w02a.

I have MB4/MB5 mapped to inventory slot 8 and 9, respectively, and my test case is sneaking (on a ladder, the edge of a block, etc) while clicking MB4 to choose slot 8. This selects slot 9 in 1.12.2, but in 18w02a it correctly selects slot 9.

Maybe this is related to the LWJGL version bump?

TheSkillzMaster 2020-05-04T00:51:57Z

is this still a problem?? i play in 1.8.9 and i have this problem

can not tell you for privacy reasons 2020-05-04T01:00:25Z

well, you play in 1.8.9 instead of a newer ver