5dMk2 keeps changing Shutter/ISO when recording

[conf]

hi there,

my Canon 5D Mark II recently started changing the ISO and the shutter speed slightly when hitting the record button. this is something completely new that's never happened before, I can't remember changing the settings at all but even so I did a reset of all the settings and it still does the same.

it's in Manual mode, of course, and I face the camera towards a dark corner with an ISO of 640 in this case and it shows in the LiveView what it looks like at 1/50 shutter and 640 ISO, but the second I hit record the camera starts brightening the shot automatically by raising the ISO up to 4000+ ISO and changes the shutter speed to 1/33

could this be MagicLanterns doing somehow and if so, does anyone know how to fix it?

thanks in advance

[Walter Schulz]

Press SET, startup cam, keep SET pressed until startup finishes.
Retry and report.

[conf]

thanks for replying!

looks like that inactivated ML, still the same issue. if this was in fact to inactivate it that should mean it's some sort of camera setting and not a ML setting, right? if so, got any clue what's going on?