(Bug report) - Duplicate backpack issue resulting in stretched (bizarre) player models

[madrussian 347]

(Not sure if this is correct place to post but I hope it gets fixed.  Thanks!)

100% repeatable.  Game v1.80143869 with no mods loaded.  Here are quick steps to repeat:

 

[Two players, hosted server]

1. Open the editor, place two playable units, one with a large full backpack and one without.  (Use “B_Soldier_A_F” and “B_Soldier_F”.)

2. Place two trucks (use “I_G_Offroad_01_F”).  Name trucks “truck1” and “truck2”.

3. Clear the cargo from both trucks and add a small empty backpack to both trucks, like this (in "init.sqf"):

Spoiler

 

if (isServer) then {
    {
        clearWeaponCargoGlobal _x;
        clearMagazineCargoGlobal _x;
        clearItemCargoGlobal _x;
        clearBackpackCargoGlobal _x;
        _x addBackpackCargoGlobal ["B_TacticalPack_blk", 1];
    } foreach [truck1, truck2];
};

 

4. Fill the 2nd truck with cargo to at or near capacity, like this (in "init.sqf"):

Spoiler

 

if (isServer) then {
    truck2 addItemCargoGlobal [(primaryWeaponMagazine player) select 0, 500];
};

 

5. Start game, have both players approach truck1 (the empty truck, empty except for its 1 small backpack inside).

6. Have player #1 put his large camo backpack in the truck and take it back out.  Have player #2 take the small black backpack from the truck and put it back in.  This shows backpacks are functioning normally.  [Disregard truck1 (along with it's 1 small backpack inside) from this point onward.]

7. Have both players approach truck2 (the full cargo truck, which also holds 1 small backpack inside).  Ensure player #1 is still holding large camo backpack.

8. Have player #1 open the truck’s inventory, and right click on his large camo backpack in an attempt to put it into the truck.  Note that nothing happens, as the truck is full and the backpack won’t fit.  (Everything is operating correctly so far.)

9. Now, with player #1 still having truck’s inventory up, have player #1 right click on the small black backpack from the truck’s inventory (to take it).

10. Note that the game knew that player #1's large camo backpack wouldn’t fit in the truck, and thus automatically placed large camo backpack on the ground, to make space for small black backpack in player #1’s inventory.  Also note that player #1 is now holding small black backpack.  (All of this so far is operating correctly.)  Here’s the problem:  Notice there are now actually TWO small black backpacks: One that correctly appears in the player #1’s inventory, plus an erroneous duplicate (seen in the truck’s inventory).

11. Have player #2 pick up the erroneous duplicated black backpack from the truck.  Now quantum entanglement is apparent, as both player’s are wearing the “same” small black backpack and both player’s machines continuously update the position/orientation of the backpack.  (Basically both players can see both backpacks jumping up and down on each player model, especially noticeable if one player kneels down or similar.)

12. If player #1 drops the backpack by picking up his original large camo backpack, player #2’s model stretches (in unbelievable fashion, visible on both machines).  When both players drop and abandon the entangled backpack, player models return to normal, but the entangled backpacks remain bugged (and can’t be used properly anymore due to entanglement).

 

Btw- I checked and the backpack duplication part (when truck cargo full or near full) occurs in SP also.  Hopefully that extra bit will help while tracking it down.

 

In any event, hope this all helps (and gets fixed), thanks! 

[Dedmen 2714]

On 24.3.2018 at 7:39 PM, madrussian said:

(Not sure if this is correct place to post but I hope it gets fixed.  Thanks!)

100% repeatable.  Game v1.80143869 with no mods loaded.  Here are quick steps to repeat:

https://feedback.bistudio.com/project/view/1/ <----

Make sure to put [DEV] into the title. BI tends to overlook major errors on dev branch and let's them slip through to release. Would be awesome if we could finally get a DLC release without a hotfix shortly after.

[madrussian 347]

OK, I submitted a report on the tracker here.  Here's more info from the report, for anyone curious:

 

Bug Description (bit more concise):

 

With a backpack on your back, taking a backpack from a full (or near full) vehicle or crate results in a bugged duplicate backpack (SP and MP).  If another player picks up the bugged duplicate backpack, both players see glitchy jumping backpacks. (MP)  If original player then drops backpack, both players see 2nd player model stretch into bizarre pattern. (MP)

 

Additional Information

 

Please also note, this is not only a case of a vehicle/crate starting out over-filled.  This also occurs when the vehicle is *near* full.  It happens when the space taken by your originally-held backpack plus the taken space in the vehicle exceeds the capacity of the vehicle, when you attempt to take a backpack from the vehicle.  In this case your original backpack is automatically placed on the ground (correctly).  So in the case of almost-filled vehicle, the bug still happens even though at no point does the vehicle actually over-fill.