Piston Storage Bug

Hello. I noticed that when I was trying to create more pistons and put them in my storage chest, that they wouldn't stack. I had to place them side by side in the chest with one stack holding 2 pistons and the other holding 12. They were the exact same type of piston too. The only way I could get around this was to physically place all of the pistons on the ground, and break them with my pickaxe. For a while, this would fix my problem of stacking in storage. But then my 3rd time doing this I lost all of my new pistons that I made when I opened my inventory.

(I have also had the exact same problem with Sticky Pistons too.)

I hope that this can be addressed soon. I love the game and would love to see it be even better in future.
Thank you.