Mysql master-master permission replication issue
Your grants are not replicating because you have an (unnecessary) replication filter on INFORMATION_SCHEMA.  There is no reason to exclude this, as it is not replicated anyhow.  When replication filters are in place, you have to USE a database or your statements are not replicated.

For example...not replicated

Grant all privileges on *.* to foo@localhost identified by 'bar';


This is replicated...

USE anydb
Grant all privileges on *.* to foo@localhost identified by 'bar';


....but instead, just remove that replication filter.