Another strange MMM observation in behaviour

ok now i just noticed this before another packed dirt bashing session. i went to connect my 5s2p 123 cells and it did the usual light show spark then arming chimes went off. i quickly realized the switch was partially in the on position and disconnected the battery. i moved the switch in to the off position then reconnected the battery. then i switched it on and the tones sounded. but no fan initialization...? i took it for a quick test up and down the driveway and worked all fine. i was a bit apprehensive in the bash session and temped the MMM every few minutes and to check the fan was tripping at the right temps. the fan did trip but now the fan doesnt initialize each time it starts. i am hoping it wont quit altogether under load and fry itself. although i understand it does have a thermal cut...right?

cause for concern? maybe a quick castle link reprogram would fix it?