weird chars are outputted while typing, when keyboard language is Czech

[blackholeearth]

when I use the program, the system adds symbols when I type these "áä" it doesn't matter what key I use. I don't have any typing problem after I close the application. the problem appears only on the Czech language keyboard when I switch to English the problem disappears.

key used a,s,d,f,g,h,j,k´only:

result: aaaaaaaaaáaassssss¨sssssssssdddddd´dddffffffffff¨fffffggggggghhhhhhhhjjjjjj´jjkkkkk

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I use global mouse hooks;

• keypress events hooked. ,
• combinations hooked,
• have mouse down ,

havent narrowed down . Which event is causing...

blackholeearth/Win10_BrightnessSlider#168