It may be coincidence, but I just finished ripping and add this to my Music Library:
All told, there are over 1300 tracks contained in this 85 disc set. Needless to say, I am experiencing high CPU usage during scanning and crashing, but I am using Mac server. I did report this 9 days ago in this thread.
https://forums.plex.tv/t/plex-fowling-up-metadata-and-high-cpu-when-scanning/473048
Mac - Version 1.18.1.1973 is still experiencing high CPU and crashes. Maybe I will remove this box set and see how it holds up after that.