It's been several months now since I went to Bloodborne cave for the first time. Whilst there, I hit the tripwire by accident, and the explosion caused ED-E to vanish. From the patch 1.02 the world map shows him at the cave. I have searched every square inch of the place and there is no sign of him, and he doesn't show up on the local map inside or around the cave. Vault 22 does not return him, but it works for all other companions. Anyone experience something like this, or know what to do?

my ed-e is gone too i think it ll come back to primm if u go in the deadmoney location (sierra madre) when u get kidnapped by elijah

Interesting, my ED has only went insane(Total hostility), now veronica on the other hand...has vanished and reappeared though out many of the characters I've played. I wonder if its the same thing that causes these two characters to go POOF! Because I use ED like no other.