Marbles gone mad? Edit: solved

Hi, my Marbles module suddenly started behaving strange. The Y, X1, X2 and X3 outs are at maximum voltage no matter what I do and T2 and T3 are pumping out gates at at irregular intervals. T1 does not output anything. All modes are green, all knobs are at noon. No patch cables attached. The rate knob seems to slow T2 and T3 down but the other knobs do nothing… what is going on here? Any help is appreciated…

Edit: problem solved. Émilie told me that when the -12V is lost but there is still +12V power this is expected behaviour. The power connector on the back of the module had come partly loose. It was not a very snug fit and could have been loosened by the vibrations of patching and unpatching. I used some electrical tape to keep it in its socket.