What is the font that you’re using for the expressions? F27 requires one of the SMuFL compliant fonts.

I know... Finale Maestro and, just in case, Maestro Legacy...

Have you restarted your computer since upgrading?

Yes

Can you post the file to Dropbox or similar, and post the link here, so we can look at the file?

ok

https://www.dropbox.com/s/y6ikpkwpm7sjf8c/auchdu-temp-17082022-fontsproof.musx?dl=0

thanks

Why did you set up custom expressions, rather than using the already existing ones? (Not criticizing, just asking.) When I enter a dynamic from the Expressions window, they go in correctly. I have F27.1, so I'm updating to 27.2, and I'll see how that works.

A few minutes later: F27.2 installed. Standard expressions work fine.

One thing I note: If you look at the standard dynamics (select one, click edit) they show the font as Music font (Finale Maestro 24 plain) But your custom expressions just show Finale Maestro. I don't know why. But the only fix I can think of is to simply use the existing expressions, unless they don't do what you want. And even if you need to change something, I would do it by editing an existing one.

Have you sent this in to Tech Support?

good point!

in your opinion there is a way to convert custom expression to standard expression?

I can’t think of a way, but that doesn’t mean there is‘t one. Unless you have hundreds of them, I would just delete and re-enter them. Many of the stock expressions have metatools, so re-entering them should go pretty quickly. 

I found a temporary workaround: saving the "wrong" file in xml then reimporting it...

up until now all the custom expression disappearead and are assigned in the right category

that xml trick works (not always) for expression not at all for tempo markings...