Accent playback inconsistent - too harsh for piano, too subtle for flute
See https://musescore.org/en/node/308935#comment-1018027 for further info, with a sample score. Basically, the accents are too harsh, they are not dropping in dynamic the way they should. Except, int he tied note, on the second half of the tied note. Similar for fp and presumably other markings that should drop dynamic. not sure if it's all due to one root cause or it there are separate fixes needed for separate symptoms, but again, more info in that thread.
I have the example score for reference here - the tied note make the problem most obvious.