(Sorry, did not mean to delete your comment) I exported it as CP437, which is what DF expects most files to be, but I guess it expects this file to actually be UTF-8.

@Vanderhavel If you find me on the Kitfox discord, you can shoot me a DM. You could also upload it to a file sharing site as well.

What is your prefered way to receive files?
I did only change the keys on main level of the GUI, not the further occurances. I think we may have to send this as gzip to compare the hex value of the ü ö ä Ü Ö Ä keys written by you and written by DF?


...

[BIND:D_UNITLIST:REPEAT_NOT]
[KEY:ü]
[BIND:D_JOBLIST:REPEAT_NOT]
[KEY:ö]
[BIND:D_LOCATIONS:REPEAT_NOT]
[KEY:ä]
[BIND:D_LABOR:REPEAT_NOT]
[KEY:p]
[BIND:D_ORDERS:REPEAT_NOT]
[KEY:Ü]
[BIND:D_NOBLES:REPEAT_NOT]
[KEY:Ö]
[BIND:D_ARTLIST:REPEAT_NOT]
[KEY:Ä]
[BIND:D_SQUADS:REPEAT_NOT]
[KEY:x]
[BIND:D_WORLD:REPEAT_NOT]
[KEY:L]
[BIND:D_JUSTICE:REPEAT_NOT]
[KEY:P]

...

Okay, can you send me your interface file? I'll see what I need to do to fix it.

Works with manually binding in game with:
Main: Units U +FC („ü“)
Main: Tasks U +F6 („ö“)
Main: Locations U +E4 („ä”)

Main: Work Orders U +DC („Ü“)
Main: Nobles U +D6 („Ö“)
Main: Artifacts U +C4 („Ä“)

Hmm. This may be a bug in the base game. Is it possible to correctly bind those keys manually?

Already quiete helpful, but still some bugs. The ü ö ä keys are unusable (no reaction)

Further:

Want to use digging orders, press u, but gets opended citizen information (ü)
Want to open justice menu, press P, but get places menu.

Wonderful, thank you!