This one's new for me. Today I suddenly was unable to log into one of my Pi's with VNC, which I always use for everything. I was going to take an image backup to have something current. But VNC didn't log in. So I tried to log in with Node-RED to reboot it, but that didn't work. I tried Home Assistant on the same PI, and that worked without a hitch. But the reboot didn't change anything, same thing.
Now the weird thing is that even if I can't log in to Node-RED's GUI with a browser, the MQTT messages keep coming from the RFXtrx and Tellstick Duo that are connected to the thing. Has anybody seen something like that, and can you please tell me how to fix it?
I'm on my cabin, so if it can't be done over any remote, I'll just have to drive over there and plug in the backup MicroSD that I have taped to all my Pi's. That's of course older than what I had, but I'm pretty sure I can simply copy the latest flow from the old card to the new.