Bodyswap of Sacrifice cancels channeling if it cannot target anything

I don't totally understand what's happening here but here are a few test cases that demonstrate weird behavior. I'm using Awakened Cast While Channeling if it matters.

Case 1: Perma-sort-of-channelling?

1. Socket Cast While Channelling, Winter Orb (or any other channelling skill), Raise Zombie of Falling, and Bodyswap of Sacrifice
2. Channel Winter Orb
3. You will start channelling Winter Orb, but then teleport to your falling zombie. After this, your channelling will continue but you will stop building stacks of Winter Orb, and instead be stuck at zero stacks while triggering Raise Zombie of Falling and Bodyswapping to it.

Case 1 breaks most channelling skills (they stop the animation and often cancel the effects of skills like Divine Ire), the only skill that seems to work is Stormbind. Skills like Charged Dash and Flameblast have weird behavior that might be considered intentional. Storm Burst continues gaining charges, but you lose your actual orbs.

Case 2: Channelling just stops:
1. Socket Cast While Channelling, Winter Orb (or any other channelling skill), Summon Golem, and Bodyswap of Sacrifice
2. Channel Winter Orb
3. You will summon a golem, bodyswap to it, then stop channelling full-stop.

I don't see any reason why this is the case.

Case 3: How I expect this to work

1. Socket Cast While Channelling, Winter Orb, Summon Skeletons, and Bodyswap of Sacrifice
2. Channel Winter Orb
3. You are able to Channel Winter Orb, Trigger Summon Skeletons, and Trigger Bodyswap


I believe the conclusion here is that if Bodyswap of Sacrifice cannot target anything, it will cancel your channelling, but it has some really weird interactions especially with raise zombie of falling.