Are you working on a Big Sur version. At least one thing is going wrong so far. When you try to edit the text in a caption, the text becomes transparent. I mean it is still there and you can change it but you only see the change when you unselect them object.
The current version of ActivePresenter (8.2) doesn’t support the beta version of macOS Big Sur.
We will try to release the update to support macOS Big Sur soon after its official release.