superscript/subscript variable in note string (?)

Creo 2.0 M040.

I'm having trouble formatting a note using a variable within the superscript/subscript delimiters.

If this a new bug or am I missing something here?

part relation: test=10

part annotation note: &test     return "10"

part annotation note: test@+&test@#      returns "test(superscript)&test"

I put in a support case but I know you guys and gals are probably faster with an answer.

Particularly interested if this fails in WF or Pro|E