Comment 136 for bug 1321623

I encountered with the similar issue with "Linux Mint Mate 18", it happens when I refresh the desktop, then it keeps refreshing, I can see via "top" that there is a mate related process was consuming up over 100% percent cpu.

I am not sure why, but this happens sometimes, especially when the os just started, if I refresh the desktop via F5, then it got a higher chance to encounter this issue.

So, what operation is performed while I press F5, and mate is not prepared for that right after starting?