I don't know it this would be helpful, but I'm working on a personal project and I'm currently going through all the minscules. I've compiled a list of all the minscules that don't load properly. For example, some will not show thumbnail images, but, if you click on 'Index this', it will, sometimes - but not always - open for indexing anyway. My table has two lists:
1. a list of those miniscules that generate the message "No Results" (which I take to mean it isn't scanned yet), and
2. a list of those minscules that appear to be scanned, but don't load properly.
For what its worth,
Hoping it will be helpful for somebody.