Survey Connect v3.13.234
hubErrCheck.inputFormatInvalid is the error that displayed under the question for a phone number in the web form that uses an input mask. I added label::Español (es) to this question for Phone number. Switching between English or Spanish in the web form displays the same error. This error doesn't appear in the Field app.
In a copy of this survey, that only uses English, this error does not display in the web form
type | name | label::English (en) | hint | label::Español (es) | body::esri:inputMask |
text | contact_phone | Phone | | Teléfono | (999) 999-9999 |