Starting this morning (27 Nov) multiple users of our App have all started reporting this issue. I have investigated in both our Prod and UAT environments (neither of which have been changed recently and are independent of one another with their own SQL DB and their own PowerApp) and both behave with the same error.
When attempting to 'Collect' the result of a filtered datasource, some of the fields come in as null/empty.
See images below - when simply doing a Filter, all the data is returned. When Collecting the results of the filter, the Modifed and WeedPestDiseaseOther fields are coming through blank.