Scenes entities reverting back after being set?

Hi all! I have a weird problem with Scenes in HA. Specific devices will change when I set a scene involving them, but then the HA entitiy reverts back to its previous state in after a very short while (<30s), although the physical device doesn’t.

This only happens with Govee lights going from off to on (on to off works fine). I’ve tried the local LAN integration, and the govee2mqtt addon, as in this thread

Even more strangely, this doesn’t happen when I use the entities “directly” in HA (not through a Scene). This makes me think it’s a weird issue with HA?

How (and where) do I troubleshoot/get around/raise this?