Midi troubles

Hi!!! I am using the midi output of oplab to synchronize eurorack (doepfer 190-4) or arturia minibrute. After a while, strangely, the midi function disappears. I have to switch off and on again the OPZ. WHY???

I had the same issue with mine. It would just stop sending midi to my microbrute. I sent it back to Amazon for a refund. Do the lights on the back go red?

I got another one super cheap from eBay a couple of months later and it works fine. Rock solid performance. I’m not using it with the microbrute now. So it’s either something to do with CV overloading it, or its just faulty.

maybe it hasn‘t received the latest update?