Since the latest rounds of updates, I have found the after I load multiple pictures and add enhancements that the program will automatically shut down. This has happened with as few as 8 pictures in the queue. Prior to this, I would frequently work with 30 pictures at a time with no issue.
It appears that the memory is not being released after the work is closed. I have saved and closed a group of pictures and after loading a new batch, the ability to work on multiple pictures is reduced.
This is particularly frustrating in that you lose all of you work when the program crashes.