OpenRoads SUE - Entry stuck in Flex Tables

Hi,

I'm having an issue where a deleted element appears to be stuck. In trying to compute a drainage model, I receive an error for a catchment which is no longer present. Looking through the project explorer, its definitely not present in the model; however, the entry for it still appears in my Flex Tables for catchments. I'm unable to select it within the drawing through the Flex Table or through a query though. Is there any other place I could look, or any other way to remove this entry?

Thank you,

Alex