Automation changes item name

I have an automation set up to move an item from one board to another when the Person changes.
Trouble is, when it DOES the move, it changes the ITEM NAME…
i’m using integromat to create a NEW item from a google sheet… and have that creating an item name as “client last - client first” from the fields in the google sheet.
it comes through to Monday just fine, but when i assign a staff member to it, the automation works but replaces the item name with the the client ID (also drawn from google sheet).

I had thought maybe it was replacing with the next column, but testing with a different column in the 2nd position did not change the outcome.

any help would be appreciated.