Hi, I have 3x OMV6 servers, two of them were updated from OMV5.
On one of them (one that was updated from OMV5 last) is not showing updates on WEB, if Im correct it was showing them at the beginning and stopped after some update (recent one, 1-2 months ago).
Updates are visible with sudo apt update/ list --upgradable.
This still persists through 2-3 updates (with machine restarts). This server has nothing special configured (only docker, backup plugin).
Few screenshot from different days.
Repo settings in omv-extras: