Huh, sorry to hear that; that issue sounds very strange. What platform are you using?
Also, what kind of computer do you have (laptop, desktop , etc.)?
Hi! I'm on a Windows 11 on an Acer Nitro 5
Just tested it out again and found out this goes for both Steam and Non-steam versions and that the difference in which windows (Create and/or Menu bar) disappear is whether you minimize it on the Masterplan 'Welcome screen' (pls see link)
The first gif is when you minimize it after closing the 'Welcome screen'
Second gif is when you minimize it on the 'Welcome screen'
In both cases Masterplan closes/crashes when you try to resize the window after minimizing it.
I hope this clears it up. Please let me know if you can't see the gif (not sure I remember how imgur works).
PS Sorry I made a mistake on the first post it said 'Edit > Create' instead of 'View > Create'