When I bulk export in JPG, some of the pictures export in original (RAW).

I import my photos into Lightroom Classic in RAW. My export settings say JPEG, yet recently I noticed when I export multiple, some of them stay in RAW. The end of the file says .jpg, but the file itself is RAW. I did this multiple times, and different pictures would be in RAW, so I know it’s not related to the specific file. In this case, I exported 20 photos and 2-4 were in RAW. I tried exporting 200 photos, and 8 were in RAW.

Screenshot of export settings attached. (Note: When I unchecked Resize to Fit, 15 out of 200 exported in RAW.)