Ok i actually found the problem and the solution to it. I post it so it might help other people.
In the blueprint where i use my widget component the draw size was too big and for some reason it blurred the widget and not shown it properly (tho i have no idea why only the transparent widget version, the masked one was just fine).
You should either change draw size to somewhat fit the widget or turn on Draw at Desired Size and it will be sharp as a knife.
