Plugin deletes images it should not be deleting

Senario:

I upload a file called epstein.jpg to a feature image.

I then have this on disk:

epstein-1024x576.jpg
epstein-1040x560.jpg
epstein-150x150.jpg
epstein-165x116.jpg
epstein-300x169.jpg
epstein-360x240.jpg
epstein-555x278.jpg
epstein-728x360.jpg
epstein-750x375.jpg
epstein-750x422.jpg
epstein-768x432.jpg
epstein-85x60.jpg
epstein.jpg

Later, I add another post with a completely different feature image called epstein-1200x630.jpg.

I then have this on disk:

epstein-1200x630-1024x538.jpg
epstein-1200x630-1200x560.jpg
epstein-1200x630-150x150.jpg
epstein-1200x630-165x116.jpg
epstein-1200x630-300x158.jpg
epstein-1200x630-360x240.jpg
epstein-1200x630-555x278.jpg
epstein-1200x630-728x360.jpg
epstein-1200x630-750x375.jpg
epstein-1200x630-750x394.jpg
epstein-1200x630-768x403.jpg
epstein-1200x630-85x60.jpg
epstein-1200x630.jpg <-- BASE IMAGE
epstein-1024x576.jpg
epstein-1040x560.jpg
epstein-150x150.jpg
epstein-165x116.jpg
epstein-300x169.jpg
epstein-360x240.jpg
epstein-555x278.jpg
epstein-728x360.jpg
epstein-750x375.jpg
epstein-750x422.jpg
epstein-768x432.jpg
epstein-85x60.jpg
epstein.jpg <--BASE IMAGE

Advanced Options
Clean unkown metadata
Delete Unselected Thumbnails

When I run the REGENERATE, it removes the base image epstein-1200x630.jpg and then reports epstein-1200x630.jpg is missing or not an image file

Many base images that already have a size in the file name will be removed and the REGENERATE reports that the file is missing, when it wasn’t missing.