When you paste in a material it will automatically show a pull down used for auto-typing which is great. But unless you remember to click on the top line it will automatically pick a part number that is not the part number that was pasted in and then you need to delete it and do it over. In the past when you pasted in a material that did not have a Material ID it would put it in as a Miscellaneous material, which we actually use quite a bit.
This seems to only pick items from the list when the mouse pointer is hovering over them. Not a good situation. But it is avoidable. If I want an item from the list make me click it.
That would fix this entirely