Dead Blackguards missing from Stockkeeper's warehouse

The warehouse I'm standing in front of is, looking at the map, clearly the way forward, but lacks the dead Blackguard we've all come to expect as an indicator. I verified that one of the warehouses on the far side does have one, and there are no other ways through, so this is definitely the main path. I suspect that the Stockkeeper's presence in this warehouse mucked up the Blackguard generation.