Solved Server crash - onLookInShop for container

[VitoxMaster]

Hi everyone!
Lately I've noticed weird behavior with Player: onLookInShop call. For regular items it works perfectly, nothing to add more. But when I just use "onLook" for containers in NPC trade window (for example we're talking about backpacks) then server crashes immediately, no errors, no any sign of problem but just stops and kills the process.

I've tried to make investigation on my own but probably problem is somewhere in the engine codes (C++). My function looks as follows:

function Player:onLookInShop(itemType, count, description)
    local description = "You see " .. description
    if hasEventCallback(EVENT_CALLBACK_ONLOOKINSHOP) then
        description = EventCallback(EVENT_CALLBACK_ONLOOKINSHOP, self, itemType, count, description)
    end
    self:sendTextMessage(MESSAGE_INFO_DESCR, description)
end

Pretty regular, nothing sophisticated. I changed that code to such:

function Player:onLookInShop(itemType, count, description)
    print(itemType:isContainer())
end

Just to check what's goin' on. Again, for regular items: weapons / potions / shields it was printing false on the console. For containers just crash, not even single true visible.

User @ralke confirmed that he has same situation (topic: here). Can someone skilled in engine development help us or, at the very least, provide a hint?
Thanks in advance!


I'm working with TFS 1.5 Nekiro's downgrade 8.6.

 

[VitoxMaster]

Found similar topic: solution is explained there:

TFS 1.X+ - TFS 1.5 8.6 strange bug when making "Look" in backpacks at NPC shop module

Hi! I found a little bug that crashes the server, if I "look" any backpack that is on selling NPC module. To explain it better i'll attach the following image: So description doesn't even appear before the server is crashed. This only happens with backpacks on NPC modules, for the moment...

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