Didn’t see this was still happening Dan. So sorry. You’re such a solid part of this community It’s not good to see your account have issues posting.
I’m wondering if something is triggering the time blocks and once it’s triggered it might take a set amount of time to reset (like 24 hours). Maybe the next time it looks to have cleared try not posting more than once in a 5 minute period. I realize that’s not optimal since there’s no reason for you to be blocked in any way but maybe you can figure out what is triggering it. Goodluck.