Hello Mirek,

It does not happen when I completely exit TheIdE. It only happens when I try to open another project. The package selection screen comes up and the app crashes (not always, but most of the time).

TheIDE on release mode (FULL_DEBUG flag) points to below line:

Thread 1 "theide" received signal SIGSEGV, Segmentation fault.
Upp::Image::Image (this=0x7ffffffe71e0, img=...) at /home/user/upp/devel/uppsrc/Draw/Image.cpp:295
295			data->Retain();