First, make sure you are disabling resampling on all your clips. This can be done by selecting all the videos in your timeline (press D twice then drag a box around all your videos), right clicking, going to "switches," then checking "disable resample" at the bottom.
Once you have resampling disabled, you need to change your Deinterlace method. To do this, go to file, properties, then change "deinterlace method" from "None" to "Interpolate fields."
That second one might not be necessary but there's a 99% chance that one or both of these will fix the ghosting.