Lightroom would consistently crash when accessing a directory in the catalog, with no reason stated. I narrowed this down to a specific subdirectory that any time I tried to access would cause Lightroom to crash. I removed the directory from the catalog and re-imported it via the add-in-place option. It works fine now. Not sure if this is a bug or just a corrupt file for me, but figured I'd mention it.
It's most likely an issue with one of the files rather than an Lr bug. That being said, good to see that your up and running again. I'll keep and eye out for similar reports in future.