fader stuck and midi lag

[DAPianist]

Hi all!

First, I couldn't figure out why some of my midi tracks were so loud until I watched the mix window during playback. Every time I pushed play, the faders on two tracks (harp and cello) slid up despite my previous placement.

The correlation between these two tracks is that the contents were both bounced midi from Sibelius dragged into Pro Tools.

This must somehow "set" the fader at the volume of the original midi track. How can I overcome this?

Thanks.