Logic Pro - export score as music-xml problem

EXPORTING MUSIC XML PROBLEM:

since the logic 10.4.1 release the function "export score as music xml" does not work properly anymore! Opening a music xml-file created in logic opens in a notation software program as usual, but the music is displayed WITHOUT any accidentals!!! Finale support tested some of my files and figured that the problem is with "logics old xml language" Strange enough this wasn't an issue at all up till February 2018 where the export worked with no problems. I also figured that these missing accidentals are there, they are just not displayed and I can fix this in Finale with some extra steps. But that's not an acceptable workflow.... Any ideas on this topic or experienced the same?