Tab bar rendering error (Build 3111)

[ciechowoj]

I’m experiencing following rendering error (the tabs), after I updated to the most recent version:

It isn’t anything serous, but annoying, and it wasn’t there. It is on x64 linux (Mint).

[ciechowoj]

It appears (very often) when I hover the mouse cursor over tab bar close button.

[kingkeith]

also reported in the Build 3111 thread