By default Survival Game Kit V2 will delete a players save data when they die, this is for multiplayer servers where if a player dies, their save data is removed from the save game file, but the rest of the save game data is not removed from the save game file. This is done so if that dead player disconnects and rejoins they won’t get there inventory items back.

If you want to disable this you can go to the BP_PlayerInventory then go to the Class Defaults and search for the Delete Player Save on Death setting and untick it.

Keep in mind if you untick the Delete Player Save on Death setting this will now allow players that die in multiplayer games to die, disconnect and then reconnect to reload their dead character inventory, equipment, items and location!