ATEM MINI Pro Pocket 6k on camera recording

I need to simultaneously record 6k BRAW on SSD via USBc on all Pocket 6Ks. Everything is connected. How do I trigger the recording now? Last year BM told me by hitting the rec button on the ATEM Mini Pro. But that doesn't do anything. I am sure you guys can help me.

It seems it only works with an USBc storage attached to the Atem. If thats the case, please Black Magic fix this. I have no need for this recording and I am loosing the USB connectivity.