Which version of Lightroom are you using?
As I said, I always keep my software up to date; I'm running the latest version of Lightroom Classic CC.
Ian is asking for numbers, not 'latest' or alike, for the reason that it happens quite often that users believe they are using the latest version while they are not due to possible issues in the update detection logic.
Please post the exact version.
I'm using version 7.3.
For some reason, Lightroom started using +80% of my RAM, so I shut it down. I tried to open iTunes to listen to some podcasts before reopening Lightroom, but my computer froze (which hasn't happened in a long time). The issue seems fixed after rebooting... But I know this has happened before.
Sorry for wasting your time. I'll make a more specific post if this happens again. Thank you for your time!