I believe the original intent of the table overlay is to cover the data area that is in async. However, while using the filterFactory with filterPosition="top" that creates another row below the header. This new row now takes the position of the overlay instead of the data area of the table.
Is there an easy fix for this using overlayFactory styles or may you consider this a bug to change the default position of the overlay when filterPosition="top"?
Thank you!