I confirm I have the same problem (I mention it here: RSTP Caméra : bug "envoyer par message").
Restarting the Gladys container temporarily « fixes » the RAM issue, but there’s clearly a problem.
I noticed that the image on the dashboard is updated in all cases in the background, even when it isn’t displayed on any device.
→ Maybe we should request the latest image when loading a dashboard rather than all the time in the background?
The other error is that the ffmpeg thread never stops.