By pure chance, I happened to open up the console while in the Black Mesa Inbound tram and came across this error:
NPC npc_human_scientist stuck in wall--level design error at (4353.00 1092.00 -974.00)
Status:
hostname: Black Mesa
version : 100001/24 100001 insecure
players : 1 humans, 0 bots (1 max)
map : bm_c0a0a at: 3514 x, 3494 y, -68 z
edicts : 702 used of 2048 max