IRS rejected return with Form 7206

I e-file'd my return with form 7206 using TT Premier and it was rejected yesterday. This is the error I see in the e-file status - "An XML document that represents a binary attachment must have a valid reference to an attached file". Data in the return is missing or invalid and cannot be electronically filed at this time. If Form 7206(s) are in the return, review the forms for accuracy and errors. "

I see form 7206 in TT but, the message indicates it most likely is not being sent to IRS. Any workarounds available other than the paper submission of the return?