ISSUE SOLVED/ Spinning wheel on file save and other functions/

[soundartsonline]

ISSUE SOLVED/ too many "missing clips". Starting off fresh with another file, importing everything from the session into the new one.
If the issue continues I'll be back and ask for help. Thank you.

On High Sierra here. iMac mid 2011

Experiencing spinning wheel and sometimes 10 seconds or so lag, even when trying to open the midi editor on a track. Never had this issue before. I am reading about the spinning wheel being a common problem in Protools now.

Sometimes the program crashes as well or won't even open fully.

I've quit all programs running in the background, but still no luck here.

Why is Protools so finicky?!! What suggestions do you have to make my system more efficient.

I was using Protools 11 on a bootable drive, but since that drive started having issues (thanks to time machine backup restore problem) I am now working exclusively in Protools 12 but with some problems as well.

Looking forward to all replies!