This will fix the issue that containers with containers inside (backpack inside backpack etc) inside containers/vehicles are vanishing on restart.

Warning: Since there could be issues while loading containers/vehicles, test it before you apply it to a live server and make backups!

1. Just replace both files into @ExileServer\addons\exile_server\code and repack your exile_server.pbo or add them as CfgExileCustomCode to your mission.

Before restart and putting the backpack into the vehicle.

After restart