Mysterious WindowServer process calling every 3 seconds

I use a program with a GUI design a little bit different than usual and a strange issue: With all drop-down menus, something is forcing the window to close and therefore prevent me to use it. I noticed in the console some spamming errors from the WindowServer (SkyLight) process, appearing around 20 times per minutes.

This is message I get: "_CGXWindowIsOrderedIn: Operation on a window 0x132 requiring rights private by caller private"

I find it very strange and almost "virus-like". I hope I'm wrong.

After scouring the web for a few hours, I can't find a way to get rid of these errors. Is any of you have an idea of where this could come from or what can I try?

Note: It's not happening on my others user account on the same machine.

EDIT: Finally, I found the culprit!! It was an app called Witch developed by ManyTricks so nothing like a virus or a malware. I'm contacting the devs right now to see if they can fix it.

Solution 1:

Finally, I found the culprit!! It was an app called Witch developed by ManyTricks so nothing like a virus or a malware. I'm contacting the devs right now to see if they can fix it.