I logged into one of my larger Perch websites and about 200 of the most recent assets (images) are missing thumbnails + resized versions of the original image. All of original image files are accessible in the perch/resources folder, but the resized (example: filename-w500.jpg) and thumbnail images now show this:
It recognizes that the image file exists, but the actual image is now missing.
I re-uploaded the original image again and it processed the image just fine, creating a new thumbnail and a resized version.
Is there a way I can re-process and replace these files without manually going to each region and resaving the newly uploaded image? Also, any advice or ideas on how this could've happened in the first place so I can avoid this issue again?