My Google Play Systems updates are stuck on September since I updated to OneUI 6... Tried deleting the cache of Google play services - but that didn't help....
It's not a problem. Google don't release these updates every month. Ive had them not update for a few months quite often. Other times I've had 3 or 4 updates in a month. If there are particular security vulnerabilities that need fixing, Google release these quite often.
My Flip 5 on Beta one ui 6 started to download October play system update a couple of weeks ago, then kept saying it was unable to update in red. A samsung support beta told me they are aware of the issue in the beta community for my model and to submit a report with the logs attached. Hopefully someone, somewhere is working on a fix, seems to be a one ui 6 bug!