0/1 blue rare fire bomb on evolve is untrue

I have a blue rare fire bomb in my inventory but it won't give me credit for having it.

I was trying to evolve my firebomb to level V but it says 0/1 though I clearly have one.

Can you fix this?

My in game name is River Otter

 

If your fire bomb is already evolved then you can't use it to evolve another one.

 

Also level V needs 2 T1 fire bombs...

 

That is the deal then. Thank you. I only have 1.

 

its something they should mentioned before . because when i started playing the game i only kept 5 copies one for each tier but when i reached to t4 and then i found i need two copies not one .