Hello Lukas,
Usually the Save button doesn't appear when the browser isn't recognizing that you're signed in. I see your name in the top right so I'm assuming this isn't the case.
Do you see this issue in:
- Other browsers on the same machine?
- In an incognito/private browsing window (in the same browser provider and others)?
- On other networks?
- On other machines in the same network?
This would help narrow down where the issue is occurring.
Thanks!
Best regards,
Rachel
Esri Support Services
Rachel Guttmacher
ArcGIS Online Technology Lead
Esri Support Services