Beatgrid Refusing to Be Created After Analysis

I've recently started to have an issue with rekordbox 6 (I can't remember which version this started on) where upon concluding the analysis of a haul of songs (around 100 or so) and loading the tracks, many do not have beatgrids but do have waveforms.

Re-analyzing the track proves to no avail and the only way I can get a beatgrid to appear is to remove the track from my collection and then add it once again. I cannot get this issue to happen repeatably and thought it was only happening while in performance mode so I switched to export mode. It seemed to work fine for a month until today when I found this same issue persisted. It's quite frustrating and a pretty annoying thing to have to sidestep while going through my normal import process as I have to manually retag the track and put it back in any playlists it previously was in.

My library/database exists on an external 1TB hard drive that I have never had any issues with. This pesky issue is perplexing.