Minecraft's new launcher showing you demo mode after two days

There is an issue with the new launcher, the problem is that after two days offline, the launcher no longer recognizes I own Minecraft. 

I have too go online to solve this issue, which is very annoying because i prefer to play Minecraft offline. This problem is happening for accounts that migrated to Microsoft accounts, but I recently found it is happening to account that were purchased with a Microsoft account.

The problem needs to be fixed as it creates a problem for people who want to play offline.