Recently I posted a query about crossfading / overlays which managed to solve the problems I was having with still shots.

However I have experienced a problem when trying to do this with videos.

Using two cameras I recorded my friend singing and compiled the 2 videos into one video using multicam designer

Obviously when switching from one camera angle to the other there is a join which is apparent, I would like to have a seamless fade in using crossfade for a smoother transition between cameras.

As this does not seem to be available in multicam designer, I have tried working it on the timeline after finishing the designer stage

Viewing tutorials makes it seem simple ie. drag one video clip over the other slightly where the cameras switch over (before producing the compiled video) . However this puts the remaining audio clip out of synch from here on

Is there a way of crossfading and still retaining the audio synch ?

I'm sure I must be missing something simple here