When refreshing an imported sheet with DS for the first time, it returns a very different number of rows. One query returned far less, but the others appeared to add far more. The ones that added more can be explained by the fact that the additional rows contained data from the time since the sheet was last updated with SM, so this is expected. However, this does not explain why when refreshing with DS it returned far less rows than SM. Note that only FB queries had this issue. Search worked as intended.
Video here: drive.google.com/file/d/1QIAHHEeHyM4yrGf8sRfV0HvoCuVP7-9W/view?usp=sharing