This bug is related to functions that use holding down a button on my Xbox one controller. Sometimes it does not work. Like transferring items from inventory to stash and vice versa (hold X), or inventory to cube and vice versa (also hold X). And also using potions in inventory for the hired mercenary (LT + hold A).
I can’t replicate it. It is pretty inconsistent. Sometimes it works, sometimes it doesn’t.
Edit: it seems the issue is not exclusive to controller. I tried keyboard and same thing. Ctrl+left click does not move items to stash. But I tried in offline character and it works there but when I go back to my online characters, ctrl+left click still does not work. Is the issue related to ping maybe? Anyway, please fix this.