Metrosolidsnake

Currently stuck in the carnivine rift. I interacted with all 4 rift tangela looking things, and now have nothing left to interact with, cannot leave, cannot blackout so i'm out of options. I assume this is something that can be replicated but i haven't tried, because i've stupidly been in the rift so long with autosave on my backups don't go further back than the point where i've been stuck from.