Am I in an update cul-de-sac? [resolved]

I’m stuck on Nextcloud 19 in the web updater (no access to command line).
I get the notification that 20.0.4 is available.
The web updater, which was on beta channel, however, tells me I’m up to date, with version 19.0.8 RC1.

As I understand, the correct update path would be 19.0.7 >> 20.0.0 >> 20.0.4, so my current version would be too high.

How do I solve this without command line and without breaking anything? Do I wait for 19.0.8 stable and go from there then?

The issue resolved itself. With 20.0.6 becoming available, the update went through normally.