The app freezes

[SoCu]

Hi, the app freezes when you least expect it; the slide disappears, and nothing is displayed.
I've also noticed that the *.lock file remains at 0 KB. 
I close the app, but I can't delete that file.
I check the task manager, and PTE is still running, even though I've closed it.

These crashes happen almost constantly

Thank you.
 

[Igor]

Hi,
The most likely that some file in a project, most likely a video, is causing the freeze.
Try to reproduce this problem in a simple test project. If you can reproduce the issue from a scratch with a simple project (from opening of a project, to a sequence of short actions until the freeze), please send me the entire project (with linked files) in a ZIP file and instructions on how to recreate it.

The remaining .lock file is an indicator that the project is still open in PTE AV Studio. This is simply a result of the freeze.

[SoCu]

The thing is, when I open this project in version 11, I don't have that problem.