Having the same problem, and this just needs to be there. When doing interviews with one channel for shotgun mic and another for a lavalier, i need to be able to choose which channel i want to use.
This REALLY needs to be added ASAP
Update a few hours later:
I've been trying to find a fix and have restarted my PC multiple times.
Now i started a now project and JUST have one video in my timeline which is about 2 minutes long. I can edit a bit, but when i try to slice somewhere…