It sounds as though these computers are networked rather than standalone workstations.
Are they saving the video data to their hard drives or to a network drive? The program may not be able to save to a network drive without modification.
If they are saving to their internal SSDs, how large are these SSDs and do they allow at least 50-80 gigs of free space for the program to operate?
Thanks for the quick reply :
Yes these machines are on a domain and the users areas are on a mapped network drive.
We have just tried logging on as a domain admin user and they are able to save by browsing the users area via the full UNC. We tried makeing the affected user a local admin of the pc but that didnt work.
They have 120 GB SSDs but are pretty much empty.
As I said, I don't think the program works on a network without some modification. But I don't work for Adobe and I don't know what that modification is.
Meantime, I assume you have no trouble saving your media and project files to the computers' C drives -- although, with only 120 gigs of space, that's not really feasible for serious video editing.
So I just don't know what to recommend. Hopefully another user on this forum will have more knowledge on how to make the program work in your non-standard configuration.