See following image for screenshot:
https://drive.google.com/file/d/1NWbfPAt-RDkliUp4F4DCxDR7vIm5NkLw/view?usp=sharing
... It stalls indefinitely, videopad doesn't freeze though. If export is cancelled, everything will seem fine until you try to close videopad, of which it prompts for export cancellation confirmation (of which had already been cancelled). Oddly enough, it works fine when the video is exported the first time round. The second attempt onwards however, this problem occurs.
Edit: to add, it won't matter if i try exporting to mp4 or any other format, the result is still the same. I am using Win10, just recently updated to the new 1903 features <--- maybe this had something to do with it, not sure. Have more than enough disk space, cache set to clear upon exit.