RV with full Victron system that has worked flawlessly for more than 3 years except about once a month one of my 3 MPPTs will be stuck in wakeup mode. Not always the same MPPT. The other 2 will be charging properly. Once I switch the breaker for that array off and back on everything works fine. All MPPTs and Inverter are connected to a cerboGX with Victron cables.
I can’t see anywhere in the app an off/on switch so have to crawl into my storage bay to reset the breaker.
Try updating the firmware to the latest version??
I did have an old MPPT 75/10 that occasionally exhibited this fault, it now resides on the shelf waiting for some time to look into this further.