Why certain metrics don't show up in Report Builder?

[#1]

Hello,

For some reason, certain calculated metrics are not showing up as an option when creating a formula in Report Builder.  Is there a reason for this?  How can I find my calculated metrics?  The RSID is correct and the calculated metric is created by me. Thanks!

[#2]

Hello,

I'm currently using Report Builder 5.6 and have created a new calculated metric to test.  Unfortunately, I am still unable to find the calculated metric in my Report Builder.