Hello, and thank you for the replies.
I'm using Windows 10, computer specs are AMD Phenom x8 processor running at 3.2ghz and 32gb of RAM (so my specs are probably not the issue).
By "hard crash", I mean one where the program terminates by itself. I'm having "soft crash" problems, where in the program begins to not respond and I have to close it manually using the task manager.
I did more testing after I posted, and it seems like the problem happens when it tries to communicate with the MusicBrainz server. It will claim to be downloading information and either freeze at that point, or when the download is complete and 0 items are in queue, it won't update any of the information it just downloaded and often just says [loading album information]. And yes, I am running it as an administrator. I've also tried disabling plugins, instructing it to overwrite old MBID data, and even tried manually using the tagger to hook albums from the website directly. Every time I get [loading album information] or a soft crash freeze. I also tried doing a complete reinstallation, including wiping settings from old installs.
As for the debug log, I'd be happy to provide one. Can you tell me where I can find one or how I can generate one please? Thanks!
EDIT: I figured out how to debug, although I don't know where logs are saved after putting -d in the command line. However, using the debug log, I was able to see what songs were causing the hold ups, so I manually pulled them out of my sort order and used browser look up to find their albums and manually assign them. That fixed it to the point that I can now run it automatically on the rest of the songs. I'm not sure why it those three songs were doing this.
On another note, a separate problem (the [loading album information] problem) was being caused by the old Last.fm plugin I had enabled. For whatever reason, even when I disabled plugins, it would keep them enabled. I had to reset my preferences to default to clear it, but once it was cleared, that fixed the issue.
Any further suggestions for optimization are always appreciated though.