EMC data Domain: AG backups. skip database part of same AG doesn't work.

[logicinside22]

Description of the issue
Script by default backups all database in AG But when need to skip the backup which are in same AG it doesn't work.
I have AG name AG1 and db1,db2,db3,db4,db5 are part of AG1. If I want to skip the db3 & db5 from AG1 Backup it doesn't work.

SQL Server version and edition
Execute SELECT @@VERSION

Version of the script
Check the header of the stored procedure
Jan 2022 version.

What command are you executing?
EXECUTE dbo.DatabaseBackup
@AvailabilityGroups ='AG1, -db3, -db5'

What output are you getting?
Script still backup all Databases part of AG1 including db3 & db5.