I'm playing a little bit with AC21 and I found that 2D display has some small artifacts ... I solved many of them enabling the antialising 2D but the hotspots are displayed bad ... look at the picture
just an upadte.
I moved a project started with AC19 into AC21.
2D Hardware acceleration is off and I got werid display of all the elements..
Look at the picture
Try updating your graphics card drivers to the latest version. When any artifacts appear on my screen this is always the first thing I try, and in many cases the only thing that needs to be done.
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