This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
The Create New Asset Section for applying an image to a brush is directly under the mouse after clicking on the dropdown. If the user simply clicks (and does not hold down the mouse button) they will select one of the sections for creating an asset. This will bring up a window and appears to have caused confusion.
Expected: The text field would be directly under the mouse when clicking on a drop down (so that no immediate selection is made).
Result: The Create New Asset section is directly under the mouse when trying to apply an image
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