Ah, thanks. That is indeed what I did not get (the amount of updates). It is great to know that with the same version it works for you.
I eventually found the solution 
, and without your confirmation of the versions, I would probably have given up…
The problem was the following:
- In the “gearbox” menu, choose “settings” and then “Updates”
- Under “filters” I had switched on “Aurora Store apps only”.
- Turning this switch to “off” resolved it.
I had switched this to “on”, since I use browsers that I install through “FFupdater”. And those browsers also appeared in Aurora Store as “updates”, and much earlier than in “FFupdater” itself (obviously FFupdater picks up the updates a few days later), so that was somewhat annoying.
To avoid that, I used this switch.
As an alternative, I just use the “Blacklist Manager” where I ticked these browsers. And that works fine.
I wonder if the “Aurora Store apps only” switch has the correct behaviour. So maybe I’ll see if I can find more information about that. At least it was confusing to me…
Thanks again for your help.