are they facing each other? If you are familiar with the editor you could open the map and select the region named "Swann enter hyperion 1" double click it and select shape. Then select circle and change the size to be bigger. Do this also for "John enter hyperion 1"
This may make the scene look strange, but at least you could move forward in the cinematic.
EDIT: Also make sure you have the latest update of your editor and Starcraft 2 copy. Though I doubt that is an issue here. And have you made it as far as the image in dialogue.
Tried playing mission 6 and I would get minute long freezes occasionally. I'm about to try again after a restart to make sure it's not my issue, but it may have to do with the recent looping trigger changes Blizz made to the editor.
EDIT: Keeps happening. I'm unable to play the map, is this happening to anyone else?
EDIT EDIT: It seems to be linked to me damaging/destroying the enemy cannons. Once I eliminated all three, I encountered no other freezes.
I've finally been able to play this campaign after a nearly year off from playing StarCraft 2. I've yet to play past mission 5 of the Protoss campaign but so far I'm having lots of fun.
Not sure if you ever plan on fixing the balance issues in the Protoss campaign since it's already been so long but there are a number of things that became broken due to your incorporation of the multiplayer dependency
The current multiplayer version of chronoboost requires energy and your campaign Nexi start with enough energy for one chronoboost but will not regenerate it.
Widow Mines are visible after they fire a shot even when they're burrowed. There is now no real need to build observers in mission 3 before the objective starts cloaking.
Stalkers attacks are 15(+6 vs armored) now. They're basically Dragoons now but faster and with Blink. Also, they do not have the shield-recharge ability from the campaign
Disruptor Purification Novas will detonate on contact with an enemy unit. Corelius is a melee unit and will instantly take 145 damage if he auto attacks into a Disruptor
There is research in the Dark Shrine that gives your Shadow-Fury Dark Templar the ability Blink.
Siege Tanks will one-shot Probes and two-shot High Templar and Sentries. These units used to be able to take two and three shots respectively.
From what I understand, most of what I speak of here is not really a problem aside from the Chrono-boost. I actually kinda like some of the other differences caused by the updates to the multiplayer dependency like Ravens being support units or Tanks dealing more damage. It's just that some of it just feels like it's too different from the experience you crafted when you first released your campaign. It feels almost wrong in a way to be playing it the way I am right now.