When an item wich contains a fade out, the fade keeps going even while you skip to another part of the item while the fade was playing at that moment. This occurs while editing the cue markers in the editor of the item.
for instance: An item has a fade out from 3:00 > 3:06. when playling at 3:02 and then skip to 1:00 by mouse click, the fade out continues.
This was also already happening in version 6.3
As soon as the player (while editing cues in an item)
plays at 3.46 and you click with your mouse back on eg 3:30. Then you will notice that the fadeout will continue and will eventually stop around 3:33.
This still occurs in beta 5019.