Answer
Yes — this was traced to Aurena_Client_Metadata_SYS.Set_Format, the underlying framework logic responsible for applying client-side formatting, which originally only handled Currency-type formatting and didn't extend to Percentage, Uppercase, Lowercase, or Decimal formatting types in Aurena. A framework correction extended this same formatting logic to also cover those additional format types, and at least one customer confirmed their uppercase-formatting issue was resolved after that correction was applied to their environment.