I’m annoyed about the same thing. Recommendation: don’t do too much! The situation seems to be recovering.
The mystrom app sometimes claims that the devices are offline etc. - this is probably somehow related to the reverse migration
the SC Home App has to do with mystrom. It runs more synchronously via https://mystrom.ch/cockpit/de/#/
(i.e. on the PC, not via the app) 🤓