I searched the forum and found similar problems but non like the one which today ocurred to my obsidian sync. Using the obsidian sync on my Android 13 I saw a few problems:
checkbox and bulleted lists disappeared
links from a note to a local file on the computer are replaced by red and white dots called “Control character object replacement”
the keyboard on my samsung smartphone pops up and closes down with a high frequency
I dont want to continue using obsidian at the moment because the notes get messed up. Any Ideas?