Hey I’m trying to 100% the game and realized I missed a power node fragment in mar uru after you glitch the t type sentry to get through the 4 pink laser door things. Every time I return to that room the t type sentry is not there so I have no way to re-open them. I’ve tried leaving the area and coming back. Closed the game software completely and reloaded. Is there a wait time for it to come back or am I screwed? I REALLY don’t want to start the game over completely but I will if that’s what it takes... any help here would be greatly appreciated.
Huh, I'm surprised no one responded to this. I'm a bit late, so you might have it figured out, but I think you're talking about the room shown in this video https://youtu.be/3BlFiCKmw0w
You have to use the Purple Sentry that is outside the room and glitch it into the room. So, there's not one in the room with the 4 laser walls. It's outside in the vertical hallway. It takes a few tries to get it in the right place. Just lead it down where you need it to be.
Note: the linked Purple Sentry page describes its glitched behavior.