Ingest issue - process hung at 50% completion


Using Autopsy to ingest and process a 600GB E01 image. Autopsy is getting hung up at 50% and has been hung for about 12 hours after proceeding nicely.
Normally one sees a file name in the process bar but currently no file name is indicated.

The processing server is plenty robust for the task. Most ingest modules have been unchecked other than the basics. At what point do you call it and restart the ingest and index process? Thoughts and guidance appreciated.

Thank you,