At times I see all items in the "drop-down which I can scroll down through and other times the drop-down box displays only 3, this makes it tough to find the item I'm searching for when the entire item list I have is 200 items deep.
It is likely that the drop-down box sizing setting is not consistent and may display differently depending on the situation. It may be worth checking the program's settings or reaching out to customer support for assistance in resolving the issue.