I can help you with this. I am also a long time EVERNOTE premium user, and last night I made a sketch in Evernote that was very detailed and took me a long time to complete. When it was complete I hit save and it went into a cycle with the window & the word “saving“ that continued for over 30 minutes. Finally, it all just disappeared. That is a problem which is clearly within the system and EVERNOTE should address. Overall, the functionality of the new iOS Evernote is so diminished, but I made sure that at least my Mac version did not update, in the hopes that EVERNOTE would address these problems. I hope my faith in you is not displaced.