Cross Dissolve Issues, Ridiculously Hard to Add a Simple Transition?
For the past few HOURS I've been trying to figure out how to do a simple crossfade effect between clips where there is no dip to black. It appears as though I can only apply the transition between one set of clips where it will actually work. When it works, the transition shows diagnoal lines.
Cross dissolve works here...

If I try to apply the effect to any other pair of clips in the project, it simply just doesn't work. There's not error notification, rendering doesn't help, etc.
Cross dissolve does not work here...

I've read about "handles" and tried working around to create the effect with the clips overlapping. Not even sure why I have to account for this when the only working instance doesn't overlap? Regardless, when I attempt this it just does not blend smoothly. There is always a dip to black or the footage juts.
Can somebody please tell me how to troubleshoot this.
