Most of my photos don't show in LR classic

When I opened Lightroom Classic this morning (12.4 release, Mac Big Sur) most of my photos do not show. Out of over 8000, perhaps about a dozen display. I have tried updating my finder location, and the app shows my files in their proper location but they don't show. I tried show finder location in a couple of the files that do show, and they are in their proper location, but other files in the same folder do not show. An example is shown in one of the finder screenshots below, where the file teepee.dng displays in LRC, but nothing else in the same folder does.

I have no idea what is going on with this.