[SOLVED] Problems with "repainting" of Chromium 41

Occasionally, the tab bar, address bar and bookmarks bar of Chromium don’t reappear when the windows is maximised from a Panel, causing the desktop background to show through.

When I move the pointer across those parts of the bars they repaint under the pointer only, causing a very odd effect. I can’t take a representative screenshot using Accessories | Take Screenshot because doing so fully repaints the bars :blush:

Has anyone else come across this? No other application and (to the best of my memory) no other desktop enviroment has shown this behaviour in my experience.

I am using Version 41.0.2272.76 Ubuntu 14.04 (64-bit), for what it’s worth.

Self-reply, but this appears to have stopped with 15.04b2.