[bad_captain]

I did a debug of this, and had the same issue. The problem is that when the spell is cast, it ends up calling Bot::SpellEffect, which calls Mob::SpellEffect

case SE_SummonCorpse:
			{
#ifdef SPELL_EFFECT_SPAM
				snprintf(effect_desc, _EDLEN, "Summon Corpse: %d", effect_value);
#endif
				// can only summon corpses of clients
				if(IsClient()) {
					Client* TargetClient = 0;
					if(this->GetTarget())
						TargetClient = this->GetTarget()->CastToClient();
					else
						TargetClient = this->CastToClient();

					// We now have a valid target for this spell. Either the caster himself or a targetted player. Lets see if the target is in the group.
					Group* group = entity_list.GetGroupByClient(TargetClient);
					if(group) {
						if(!group->IsGroupMember(TargetClient)) {
							Message(13, "Your target must be a group member for this spell.");
							break;
						}
					}
					else {
						if(TargetClient != this->CastToClient()) {
							Message(13, "Your target must be a group member for this spell.");
							break;
						}
					}

					// Now we should either be casting this on self or its being cast on a valid group member
					if(TargetClient) {
						Corpse *corpse = entity_list.GetCorpseByOwner(TargetClient);
						if(corpse) {
							if(TargetClient == this->CastToClient())
								Message_StringID(4, SUMMONING_CORPSE, TargetClient->CastToMob()->GetCleanName());
							else
								Message_StringID(4, SUMMONING_CORPSE_OTHER, TargetClient->CastToMob()->GetCleanName());
							
							corpse->Summon(CastToClient(), true, true);
						}
						else {
							// No corpse found in the zone
							Message_StringID(4, CORPSE_CANT_SENSE);
						}
					}
					else {
						Message_StringID(4, TARGET_NOT_FOUND);
						LogFile->write(EQEMuLog::Error, "%s attempted to cast spell id %u with spell effect SE_SummonCorpse, but could not cast target into a Client object.", GetCleanName(), spell_id);
					}
				}

				break;
			}

where it basically just checks to see if the caster is a client and if the target is a client, and if so, does what it is supposed to do. How this worked before for bots is beyond me. I don't see any change to this code that would have caused it to not work correctly.

I'd have to dig a bit deeper, but if anyone else has any ideas, please let me know.