I’ve made a video demonstrating what happens to my machine.
I think I was not correct in my previous attempts to nail this down.

It seems that if you feed the SRC3 input too much signal, the light will get stuck on and further level monitoring via SRC3 light is not possible.

In the video:

tracks 1-7 are sent to CUE.

Track 8 is a flex machine assigned to its own buffer with a couple record and sample trigs in place.

You can see as i cycle through the tracks on SRC3 that the level is indicated and the flex machine picks up that track.

When i get to CUE where all the tracks are sent, it monitors the level for a second and then goes to the steady red.

I tried to show how moving back through the other selections does not change the light - it’s just stuck.

I reboot the OT and it again monitors the level until i get to CUE and then it’s stuck again.

Can someone try to reproduce this issue on their machine?