Issue: When I open the inventory UI, if I try to pick up and drop an inventory item into a slot on the active character, the game drops it in the slot of the character next lower down. Sometimes the inventory UI simply removes the item I am trying to equip from the game. It is gone forever. If I try to change the primary or secondary color of the active character, the UI changes it on the character the next row down. If I click an item and hold it (to drag and drop), all the entire inventory UI starts flashing, as if someone was clicking different characters about 20 cycles per second.
When I uninstalled the game, yes, I went into the Steam folder and deleted the POE folder manually before reinstalling.
Finally, I went from Windows 7, 64 bit to Windows 10, 64 bit.
To my non-technical eye, it seems to be acting like a conflict between pointing devices. It is like the Logitech marble mouse signal is being interrupted somehow. I also have a Razer keyboard for my left hand. However, these two devices are not in conflict for any other games I play on Steam. [Edit: I took driver updates for both devices immediately after the upgrade to Windows 10.]
Any ideas are welcome. Thanks!