Hello,
i have this problem that after a short time (few minutes) of starting CB its GUI goes crazy. CB doesnt crash, but is then unusable because the GUI doesnt get updated anymore. At least some parts like the line where the open file names are listed.
In my example i fiddled around a bit and i was able to reproduce this issue consistently by
1. close all files of project
2. restart CB, load the last project (no files yet opened)
3. simply open a header file first
The effect can be seen in the pic below: No file name at the top of open file, gui not responding properly to any resizing (see "Log & others" window, tried to resize it)
I can still close CB, save all files and restart.
Using ubuntu 17.04 fresh install and XFCE Desktop

many greetings,
SRM