Mac freezes when QtCreator is running

I have regular freezes when QtCreator (Sailfish SDK 3.3.6) is started or when it is in use. I’m on MacOS (10.14.6 Mojave). The Mac is fully blocked during 10 to 30s.
I uninstalled it, reinstall it and this is always the same issue.
When I open the file browser from QtCreator, the issue is systematic.

When looking at console app I can see following errors:

  • nw_path_close_fd Failed to close guarded necp fd 31 [9: Bad file descriptor]

Do you have any idea?

Is it a M1 (ARM-Architecture) MAC or a x86_64 (‘INTEL’)? Probably this could be a important information.

This is an iMac from Late 2013 (Intel Corei5)