This is the "Examination Guidelines" for the rejection of the preliminary examination of a utility model patent application: "The application document has obvious substantive defects. After the examiner issues a notice of examination opinion, the applicant states his opinion Or if it is still not eliminated after modification, or if there is a formal defect in the application document, and the examiner has issued two correction notices for the defect, and if it is still not eliminated after the applicant has stated his opinions or made corrections, the examiner may make a decision to reject it.”
It can be seen that even if it is a formal defect, if the current defect has not been overcome after two corrections, the examiner has the right to make a rejection decision. In this case, you can communicate with the examiner on the phone to find out what the specific problem is, or you can find an agency like Zhuanzhihui to help you look at it. Regardless, be cautious about this second opportunity to make amends.