UHK60 v1 misses Shift when key+mod is pressed; UHK60 v2 doesn't

[trueneu]

I have two keyboards, 60 v1 and v2, with identical configs running 15.3.0. The problem is as follows:

• on the Mod layer, I have a single key assigned to GUI+1 (not a macro)
• no Shift or GUI layer configured
• I press the Mod layer key, then Shift, then the GUI+1 key
• Scancode emitted is Shift+GUI+1 on both keyboards
• If I depress GUI+1 key and press it again, GUI+1 is emitted on v1 and Shift+GUI+1 is emitted on v2
• If I depress Shift and press it again before hitting the key, Shift+GUI+1 is emitted again, but only the first time.

I tried playing with set stickyModifiers always, but it doesn't seem to change anything.

What could be the problem?

[kareltucek]

Interesting. Could actually be a firmware bug.

Are both uhks on the same firmware version?

(Please mark down the versions before you start flashing them and post them here, so that we can get to the bottom of this. The Agent firmware tab will tell you the version of the currently connected UHK.)

Are the configs actually identical - have you made them identical by exporting one and importing on the other?

[trueneu]

Yes, both UHKs are on 15.3.0.

Configs are nearly identical - maybe a macro or two differs, and the GUI+1 bindings I did manually separately on both keyboards. 99% is export/import.

Please note though, the v1 will be out of my reach for a couple of weeks.

[kareltucek]

The behavior is perfectly reproducible, right? If so, we can (can we) rule out hardware switch malfunction.

I assume you use them with different computers. What OS is it? Could something on the OS-side cause it?

If you share those configs, ideally exported separately from both keyboards, I can give it a try.

[trueneu]

It is perfectly reproducible; I am using them with the same computer (v1 in the office, v2 at home), so anything computer side is very unlikely. OS is Ubuntu 22.04.

Here's the v2 configuration; I'll be able to provide the v1 configuration in a couple of weeks.

uhk60v2.json