Created attachment 872988 [details] screenshot When you open the panel containing BPMN2 source (View Process Source) and the Problems panel is large enough, the source panel does not show its header with control buttons => user cannot work with it and the only way how to close it is by pressing "Esc".
qe_test_coverage: UX issue
Variation of 1245816. The difference is that 1245816 was reported for the complete process sources window. This ticket concerns a single node source window.