Articulate Replay video issue

Hi,

I've uploaded a video file (2GB) to replay and can save the project however when I try to re-open it I encounter the following error messages and the file won't open.

This happened about two weeks ago and I was initially able to re-open the programme after making edits.  I have also successfully created a number of new replay files in the meantime and have uninstalled and re-installed Replay a couple of times.

Any suggestions would be greatly appreciated.