I guess a bug?

[Andre10]

I just started Parallels today. Overall, my experience was good. But, every time I use Linux, I see 5 squares in the middle and when I drag my mouse across it, it disappears but appears again. I linked a screenshot to better help.

Psst, don't worry about the cant download steam

 

[Maria@Parallels]

Hi, it appears everytime and in every apps, or maybe only on desktop?
Did you try to change VM graphics settings for example?