Fail to display video while editing a turorial

Problem:

Hi,
I’m having problems when editing a tutorial video. It frequently fails to display the video, so I can’t continue working on it. I have to close Active Presenter and reopen it. This often happens when I cut a section of video and move it to a different spot.
It also crashes frequently when I open other projects at the same time.
It’s frustrating and forces me to 1) save constantly and 2) restart the software regularly.
I’m using a test version because of another issue that had been resolved.

Regards,

Lucie

ActivePresenter version: 10.6.2.39218

OS: Windows

Notes:

what I see :