Thanks for the suggestion honestabe and justinbailey627! I do typically keep the files backed up, it’s mostly because they were new that I hadn’t gotten around to it yet haha.
After spending a few days away from the project, I’ve thought of how I can relatively easily recreate the footage I lost for the episode so I’ll likely be back on track in a few days for both versions. It’s frustrating but I’ve been reminding myself it could have been much worse, I haven’t really lost anything! (At least I’ve still got all my source files!)