Hello Michael,
This is a known issue which has been reported form other clients already.
There is a community topic that you can look at: Multiple camera models
As my colleague Rhea explains, there are many reasons why that happens, "To name a few possibilities
Sometimes, the camera serial number written in the image EXIF tags changes (it happens randomly and we did not find the reason yet) and the software will create several camera models according to that. Or, as when exterior conditions (weather, exposure) vary greatly during the flight. Also, working with a merged project will, of course, cause the software to detect multiple camera models. "
Anyway, if you can share a couple of images which are assigned to different cameras, we can analyze better and tell you what is exactly going on.
Thank you very much.