Had it happen too, especially the part right after the Valkyries. There is pattern as @theonlytosser mentioned. But still… it gets annoying. There is a skip though, a new one, YT it, you’ll find it .
After running this thing too many times to even be remotely healthy, I’m seeing lots of flaws in the raid. There are some parts in the game where spawning seems off a bit. Rushing the first part and skipping all the creatures, then entering the first part of facility and going too fast, all the soldiers and those goddamn annoying K9’s are dead, the door won’t open to the first mini boss, the first robot (I’m terrible at names, but you know who I mean). So I need to backtrack a bit, then 5-6 more soldiers spawn, and then the door opens after killing them.
Heck, today I even had a run where I was blocked at the last door (after the bridge part, oh lord the bridge, got I hate those Balls lol). Everything was dead, only them 4 badass big guys to kill and then off to Wotan, but for some reason the door didn’t open. So I backtracked, thinking I forgot to kill some dudes. But not one enemy to be found. I just yeeted myself of the bridge and restarted from the last checkpoint.
Other times, where I was rushing the raid and tried to get to that door as fast as possible, enemies were spawning waaaay slower than I was used to.
Also, since the latest patch, I noticed when using the Recursion, sometimes enemies just fly out to space, and get stuck somewhere. Resulting in a restart.
So yeah, you are not alone in this!