Escape from Castrum Centri bug, Magitek Vanguard H-1 Invulnerable

Tonight I tried to infiltrate Castrum Centri to free the Scions, but at the part where I had to untie them, I chose to defeat the enemies first and I would untie them afterwards.

Though, when the last enemy went down here, a cutscene popped and it progressed the Quest. Everything seemed normal, until I went outside where Wedge went off to fight a group and I stay behind with Papalymo and Uringer. A group of Imperial soldiers greets us, including a Magitek Vanguard H-1. My goal now is to defeat the pack and escape, but everytime I attack the H-1, it says invulnerable and I can't seem to do anything about it. All the enemies went down and I wasn't able to harm him in any way. :(

I relogged and now I can kill him, but still... I don't think thats supposed to happen.

Edit: Sorry, the actual bug I'm reporting is that they didnt shout for me to demolish the shield generators. As they didnt call out for me to destroy them, I wasn't able to.

We appreciate you taking the time to report to us about the lack of shouting to destroy the shield generators issue. However, there are still some details that we need to collect from you before we are able to investigate this properly. Please use the bug reporting template found Here, and make another post with a title that is more clear. Thank you!