It appears that the built-in autocomplete cell editor type does not work properly with scrolling tables.
Here it is in a normal table:
Here it is in a scrolling table:
This is because the dropdown component is attached to a parent IN the table, vs OUTSIDE the table, like the Pikaday editor does.
Is there a way to solve this using existing options, or should we extend the existing editor and override the attachment / positioning functions in lieu of a fix?