In parts chordsymbols are not displayed correctly

I have a problem with displaying chordsymbols in parts. In the main-score it is allright, but in the parts the first character of the chord is missing if it is a chord with more than one character, so D stays D, Dm becomes m.
Anyone else encountered this problem? It seems to me it is a bug.
This problem was not always like that, but now all my scores have this problem.
I know I can solve it by changing chordsymbols to jazz en back to normal, but this only works for one part at a time, even if I choose apply to all parts. I tried restoring all style values to standard, but that does not help either. If I make a new part, same problem! If I export the file as XML en open it with musescore 4, same problem gain. It drives me crazy! If I open this XML in Musescore 3 it is allright when I make new parts. So it is a bug!