Why are 0 values UNDEFINED in Custom Queries and MouseOver

the subject says it all. In a reg. query they show as 0, why when hidden and shown with mouse over does it say undefined?

Thanks

Bruce

p.s. Have a great weekend all

This is a bit of a glitch that you have to work around for now...

Would love a solution to this pls, sometimes the workarounds "don't work" (due to configuration requirements )