Text Variables: Equation before text?

hi,

i've started using text variables. i've followed directions (go type>text variables>insert variable) no matter variable try insert, word equation appears before variable.

ex. if insert page number , i'm looking @ page 5, appear on page equation 5.

 

i've tried editing variables , there's nothing in text before box. i've tried insert text, in case needed text before variable. however, when that, word equation still appears, before text before.

ex. chapter number. if enter prefix ch. , chapter's 3, variable turns out "equation ch. 3."

 

what doing wrong?

i unable reproduce latest build.  can please tell specific version of indd , operating system?

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