Vehicle Number Not Appear at E- Invoice

We are using  GST Gepp Tools to Generate E - Invoice ....

At GST Gepp Tools in  New Invoice Tab , We submit all informations  and  E- Way Bill Part B . After that we  generate Json File and upload the same to E- Invoice Portal

Problem facing :  Vehicle Number  Not  appearing at Print copy of Invoice .. But Way Bill Number is appearing

Please give solutions