Currency exchange not showing how many you own until you view them in the stash

When trying to sell items on the currency exchange that you only have inside a stash tab (potentially only paid tabs or Essence tabs?) you will not see how many of the items you own until you have opened that stash tab for the first time of the current game session.

I would imagine this also happens for other stash tabs and item types as I've also noticed Scarabs not showing their amounts over the last few days. I've just managed to reproduce it 3 times in a row this way:

Steps to reproduce:

1. Start the game in a new session, while already having essences in an essence tab and nowhere else
2. Talk to Faustus and open his essence tab
3. Note that none of the essences will show the number representing how many you own next to them
4. Close and re-open the exchange, and note that this doesn't fix it
4. Leave Faustus and open your stash
5. Open your Essence stash tab
6. Return to Faustus
7. The Essences will now correctly show how many of each of them you own

I am having the same bug.

Auction house does not populate my stash inventory with respective quantity numbers. I did not know how to fix this until I read this post. It seems to work once you view each individual stash tab. But then reverts back to bugged once you leave the instance.

Any comments from POE devs?