[2020] flickering in menu + textboxes

Hi all,

i have a weird flickering since 3-4 weeks. I hoped it would solve itself with a patch but it didnt. It didnt occur in the first few days of the game.
When the game is in the menu (before you start the game) it flickers a lot. When in-game, it doesnt flicker in the anno world but it does flicker when i open textboxes.

My drivers are updated and here are my specs:
Intel core i7-7700K 4.20 ghz
32GB RAM
geforce GTX 1080ti

i m using a 4K screen (AGON) and graphics on max.

best