Frame not redrawn

Hello, developers.
There is some major failure in the last 5.2.3 kdevelop when entering 
the debug mode after several restarts of the debuggee the gdb/stack/
etc. frame is not redrawn - see attached picture.
Clicking on the upper-left corner, where the X should be, works - 
the blue (in my this specific case) frame disappears and, if gdb, 
for example, button is pressed, gdb frame appears.
To receive the same effect again:
- put a break point
- run till it
- switch to another application and return back to kdevelop

Best Regards :-)
-- 
Leon