Help! Lost patterns/tracks in model samples

Hi, I’m relatively new to the electron world and loving it. After filling my new model samples (that was quick, probably too many unnecessary loops rather than one shots), it was full so I deleted a couple of folders, using the transfer app, that I don’t think were being used at all in any tracks to make space. However, now some of my patterns/tracks have disappeared, a few that took hours of careful tweaking! I hadn’t yet backed up yet (just done that). Any advice from any electron veterans as to whether I can recover my lost patterns somehow? I read about defragmenting in the manual but it seems that option appears automatically rather than manually. Thanks a lot for any advice and sorry if I’ve duplicated any threads.