Originally Posted by rsn48
The problem seems to have resolved itself. I tried sending several members messages and no go. Couldn't reply to any sent message to me, then an hour latter, good to go.
Good it's resolved. I suspect the reason might have been that you actually didn't log in as a member on that occasion, but just as an onlooker, which one can do, but no actions are available unless logged in fully as a member.