As mentioned above the problem is not related to beta whatsoever. same problem with 10.25.6, see attachment.
To the contrary, I'm actually very much concerned with the capacity to have a working backup for my notes! It feels a bit like evernote wants to lock me in..
The advise from @agsteele to use legacy for backup is currently the only way for me to get a working backup with intact titles, thanks!
blake2.enex