Thanks for your support Emmanuel, I have renamed "recovery" folder and now application starts up with new empty project.
In the 'recovery' folder I can see is my project file, and when I try to open that - app freeze again, so definitely there is something wrong with that. I will send you in PM the ...

In fact, I do not have additional monitor (external one). When the app is launched, I can see it has two tabs, but it is not possible to close any of them, it is not possible to click on any menu 😞 only option I can see it to "force quit". So maybe, as workaround - is it possible to delete my ...

I have just played a little with SH3D, and by clicking too fast I have enabled (I think) some feature to display 3D view in 'separate window'. After that, app is working, but I can't do anything. The only way to quit app is to force quit in mac os, as clicking on any menu is doing nothing.
I have ...