Removed a replicated folder in DFS management console, waited for AD replication, ran Update-DfsrConf...fromAd, waited some more, confirmed the folder in question no longer showed up in the DFSR config on all members, restarted the DFSR service, waited several hours more. The DfsrRo filter driver is still blocking Write I/O on the folder at the former Read-Only member. Tested by temporarily unloading the driver to ensure that it is, indeed, the driver that's blocking the I/O and not some other permissions.
Any ideas on how to get the filter driver to refresh its configuration?
Thanks!