Extensions sounds (Marching Band) plays back other instruments upon reloading the software

I've been writing a piece of music that includes the Snare Drums from the MuseScore Drumline extension and noticed that when I closed out of MuseScore and re-loaded it the playback started playing horns instead of snare noises

I messed around with it for a while and it seems that every time I load up MuseScore it does this.

I can get it to fix the sound if I edit the part by going to Staff/Part properties for the Marching Snare Drum part and re-set it to the Marching Snare. However, I have to do this every time I load up the file. (snare drum starts measure 8)

I haven't been able to pinpoint the cause of the issue but I'm guessing that MuseScore doesn't check for extensions before starting playback or the note is shared in the playback with a horn part, however it could be helpful to other users to prevent irritation when trying to get midi playback