Hey Joe
I’m not the right person to help as I’m not a Mac user.
That said, it’s unlikely your issue is related to the size of your iRp library.
iRp song code is very data-thrifty. I probably have easily 10 times as many charts on my iPad mini.

Please be patient. Support request volume is waaaaay up during the holiday season.

If there are no other replies here within a few days, you can copy your detailed posts and email:
support@irealpro.com

I suspect that's very busy as well with many new users and their new Christmas devices.

The “usual” 1st fix attempt is to make a backup of your library (there's a utility within the app) save via email or Dropbox etc.

https://technimo.helpshift.com/hc/en...aylists/?p=mac

Then delete the iRp app, make sure there are no additional copies of the app hiding somewhere. Then reinstall using the same store account (no additional charge)
and import the backup you created.

https://technimo.helpshift.com/hc/en...st-song/?p=mac

I’d probably wait to hear from a Mac person before pressing forward…

Sorry for your inconvenience, hope it's resolved soon.

)BOB