There seems to be a problem with audio boost not persisting when Splash is closed and then reopened. Even If I create a custom preset it still is unticked whenever I run the player.
We decided to reset Audio Boost every time application starts, because it is needed only in quiet encoded files.
It can be harmfull, when you open a file by double click and it plays at 500% volume.
I see that the Mirillis team are even directing other people to this post, however there has been no communication from the team regarding this or my other request for a resume/bookmark feature. We have had two releases since then though if i'm not mistaken. I am a programmer with over 25 years experience and would be glad to implement this change for you.