Incorrect playback... Oboe by Muse Sounds

Oboe instrument by Muse Sounds:
In the interval descending from E (4th space) to A (2nd space), the note A is almost not perceived. By setting a dynamic higher than mf the sound normalizes. With other ranges, I have not tested them all, everything seems to be ok.
I attach the.mscz file (version 4.3.1) so you can confirm it.
Sorry for my English (I don't know the language).
Grazie.