Good afternoon. How the new mail block works:
When the page is opened, it takes the address of the process, tries to parse the branch number and city of the recipient there, and saves this data in a separate table. If at some stage you output a block 1 time and the process went through this stage, the data in tn is pulled from this block. In your case, the box has entries in the corresponding plate with the city and branch of the recipient,
https://prnt.sc/v70ye2 , for this order and, accordingly, the data is pulled from the box and the new mail does not parse the new process address, because the data has already been filled in earlier in the block. To avoid such situations, you need to either always output this block in the process and edit the address already in it, or never output it at all.