4k: Textfield does not accept input

[Peter2]

A strange behaviour:

- I have an odcl.lsp
- with buttons, text, comboxes, frames and textfields
- which is compiled into a VLX
- in AutoCAD I use vl-get-resource and dcl-project-import

Previous state:
- all font setting were set to "size in pixels"
- everything works fine

Adaption for 4K:
- all font settings in all  controls were changed to "Monitor settings"
- (nearly) everything is fine, but
- now the both textfields don't accept any input, there is only a small error-beep


testing:
- I changed font-settings sometimes between "Pixel" and "Monitor" - pixel is always OK, monitor always with error-beep
- I used the pure ODCL.lsp (not as compiled VLX) - it works fine
- I copied the dialogue to "test.odcl.lsp", removed everything but the textfields and doubled them. Now I have 2 textfileds with "pixel" and 2 with "monitor", compiled them - and everything works fine in "test".

Has anyone seen a similar behaviour?