Try match framing V1 where you intend to have the effect start. Then add the clip to V2 that you intend to apply the effect to making sure your in and out points match V1 so you don’t get a jump cut. Or you could possibly do an Add Edit to V1 so you can apply the effect to that section of video without effecting the rest of the track.
Drew Pertl
http://www.DrewPertl.com