The problem is they added one letter on her middle nameIf your mother’s complete name is long..the middle name (maiden name) will be shortened. Thats what happened to me, my daughter and son. My husbands name on COPR and Visa was ok.
Sample:
Surname: Santiago
Given Name: Chloe Marie
Middle Name: Reyes (mother's maiden). It shows Re. My kids middle name was Rey and Reye instead of Reyes.. it depends how long the complete name is.
all our ID in Canada even citizenship cert ended like that.