Does the uBAQ update as expected and reliably when run from designer?
Different methods are called when the uBAQ is run from a dashboard vs. designer, I have a post calling out differing functionality in the methods here: Updatable Dashboard w/uBAQ linked to Grid dropping data when columns not present in grid - 2024.2.10 (Kinetic) (and a case/PRB accompanying that didn’t get anywhere)
You might be able to call the same method called from BAQ Designer in app studio with kinetic-rest widget for a diagnostic test. you’d have to set up a new dataview with your (unchanged and changed) rows, with RowMod=“U” as appropriate, and set up that dataview in the request parameters to sendallrows.
Potential workarounds include using that kinetic-rest widget instead, or, chaining kinetic-rest(GetByID), row-update, kinetic-rest(Update) widgets in your event. Pull the record down, set rowmod U and checkbox true, push it back with update.
I’d open a bug on the indeterminate behavior - it should be consistent.