When I use UpdateFields method- the ? ?missing

When I use UpdateFields method in my document, the ③ ④missing(Alt+F9),could you tell me why? Thank you very much!

Hi there,


Thanks for your inquiry. We have tested the scenario and have managed to reproduce the same issue at our side. For the sake of correction, we have logged this problem in our issue tracking system as WORDSNET-15404. You will be notified via this forum thread once this issue is resolved.

We apologize for your inconvenience.