Indeed, it happened to be today again, I checked the tool:
http://www.steemdollar.com/limitstatus.php?name=profitgenerator

And it showed that i could not post, then I posted, and suddenly it got reset. I already signalled this bug, but so far it didnt got to the author:
https://steemit.com/steemit/@profitgenerator/posting-status-tool-has-bug-shout-out-to-mauricemikkers