Key Backpack issue

[Kaklent]

I have 2 key backpacks in my inventory yet the game is always showing the no key backpack message whenever I find key while mining, is there a way to fix this or the only way is to buy another key backpack or get another one from the starter kit?

 

[Hridayesh]

No you can not get keys if you keep two key backpacks in your inventory.
You can keep 2 backpacks in your inventory , 1 backpack and 1 key back in your hotbar to work.
Only 1 key BP is necessary.