Hello,
I've been running a nice stable system which has a Raspberry Pi 3 with three USB webcams, and two remote webcams which are standard Pi Zero W devices. Everything's been running brilliantly... until I just decided to try the latest version this morning on one of the Zeros. The firmware seemed to upgrade ok, the video stream re-appeared... and since then I can't access the settings on any device! If I'm logged onto my main Pi 3 (which is the central device that pulls in the two remote web streams into a single page of 5 streams), and click the triple-line for the menu, the menu pane opens but is very, very dark text (almost invisible) and nothing works.
If I click the settings spanner on any other window, absolutely nothing happens.
I've tried powering off the single Pi Zero W that had the software update, and rebooting the Pi 3, but I still have the same problem. I've tried logging off and on again with no change.
Any help is very gratefully received as I currently can't change any settings or firmware on any of the devices!
Thanks
Richard