If you can't find a spider bot

I know 99% of this community are dicks based on my previous post, but just wanted to share something. Just spent like an hour trying to find a spider bot, googled exactly where it was to no avail, turns out even though you got a finish quest bonus you might still be "mid quest" so they literally just don't show up. If you can't fast travel they don't show up. FYI others in the same situation.

Literally just looked at a grave and then it showed up after that. This game is generally amazing but in some ways so dumb