Filter stopped working

elbazon

Since January 31st we stopped getting data from the rest API for both perimeters and points endpoints.
When using the url with filters:
https://services3.arcgis.com/T4QMspbfLg3qTGWY/arcgis/rest/services/WFIGS_Interagency_Perimeters_Current/FeatureServer/0/query?f=geojson&outSR=4326&outFields=*&returnGeometry=true&where=attr_IncidentTypeCategory='WF'+and+attr_FireOutDateTime=null+and+attr_ContainmentDateTime=null+and+(attr_PercentContained=null+or+attr_PercentContained<100) 

It returns an empty array.

However, when using it without any filters, except for the type 'WF', it returns data that should be returned with the full URL above, as it is satisfying all the conditions in the where clause:
https://services3.arcgis.com/T4QMspbfLg3qTGWY/arcgis/rest/services/WFIGS_Interagency_Perimeters_Current/FeatureServer/0/query?f=geojson&outSR=4326&outFields=*&returnGeometry=true&where=attr_IncidentTypeCategory='WF' 

Has anyone else experienced this behavior? I am hesitant to disable the filters because doing so could return a significant amount of data, which might negatively impact our performance.

Thanks