Can't select enum entry in data table editor

I think it may have to do with the enum size? Their are 286 entries and when I select the final 30 or so in the data table it selects “down” the list but from the top. So I made 2 enums with 143 entries each and it works fine but now I need two different data tables which is an annoying fix.

They are all just names so no special characters or anything.