25p project motion adapter question

Hello together,

I've got some DNxHD 120 footage recorded through ninja blade with the camera in progressive mode. Avid recognises this footage as HD1080i.

My project is 25p, as I would like to have all effects, transitions etc in progressive mode.

The recorded footage has a motion adapter on it, when I move it in the timeline (because Avid thinks it's interlaced?). I don't think I need this motion adapter, how can I delete it from the masterclips? I've tried but I could not do it in the source settings...

Ideas?

Thanks,

Michael