I also have Galaxy Note9. When notes were transferred, the formatting tools disappeared.
I submit a ticket surrounding the lack of formatting tools; I see that it's been "resolved." However, I don't seem to be able to view the resolution. I have tried selecting the resolution ticket number, the word "solved," and the ticket subject, all w/o success. I have also asked for the resolution via an email since I wasn't able to view it. Unfortunately, my email request was ignored. It's certainly disappointing.
I have not run into any other problems w/Evernote Plus on Galaxy Note9.