SandraChung wrote:
5: Indexing? Would deleting the data subfolder fix this problem or cause a worse one?
The data subfolder contains bridge's database, which is a cache of all metadata. If you delete it, it is recreated. As your problem appears to be index-related (the index is basically the metadata cache), it seems a pretty pertinent thing to tackle.
As it's a cache, it's okay to delete. It's rebuilt from existing image data. The wholesale way to rebuild the index is to do a whole-disk search with the indexing box checked.