Loading handle from dead unit

[ToldYouSo]

if d == MortarUnitQuest then
call echo("dead quest")
call GroupRemoveUnit(QuestGroup,d)
call GroupClear(CryptSpidersGroup)
call DestroyGroup(CryptSpidersGroup)
call QuestSetFailed( CryptSpiders, true )
//call KillUnit( gg_unit_e00P_0278 )
call DestroyEffect(LoadEffectHandle(Hash,GetHandleId(MortarUnitQuest),StringHash("QuestMark")))
 call TriggerRemoveAction(CryptSpidersTrigger,LoadTriggerActionHandle(Hash,GetHandleId(CryptSpidersTrigger),0))
 call DestroyTrigger(CryptSpidersTrigger)

// call QuestSetFailed( CryptSpiders, true )
 call TriggerRemoveAction(gg_trg_CryptSpidersQuest,LoadTriggerActionHandle(Hash,GetHandleId(gg_trg_CryptSpidersQuest),0))
 call DestroyTrigger(gg_trg_CryptSpidersQuest)
endif

Yeah as you can see, I doubt myself is it valid to do. I found something in my map, when Iam entering of unit range event (in this case it's variable MortarUnitQuest), and then kills this unit, the map is probably going crazy just like I posted before.

 

[ToldYouSo]

My gosh, I tested more, and now I feel like the problem is in

call GroupRemoveUnit(QuestGroup,d)
call GroupClear(CryptSpidersGroup)
call DestroyGroup(CryptSpidersGroup)

When I destroy this global groups. Dont know why, I only check in the same dead even trigger for CountsUnitInGroupBJ, so I know the group is destroyed now.