exalted orb disappearing when trying to stash it

When moving exalted orb from my inventory to currency tab there is no increase to the exalted orb amount (i have 43ex and it stays 43 after i the move).

I dont know how many orbs lost. am i missing something??

please help

This just happened to me too.
I was on my Gem stash tab, expecting them to add to the stack there.

I used the stash tab highlight filter set to "exalted", and eventually found them on my final tab.