I get this error when trying to run DeleteFeatures tool on a feature class. The feature class is in a file geodatabase in ArcGIS Pro 2.2. There is also an error when just trying to open the attribute table of the same feature class. I have never had this issue with Desktop 10.x. Has anyone had a similar issue with feature classes becoming corrupted in a ArcGIS Pro geodatabase?
What is the error message?
Can you open the gdb in a new project?
I just found this: 999999: Error executing function.—Help | ArcGIS Desktop