Subject about says it all. In 220.127.116.11b SB for Roles, I select the role on the LHS, then the Object Grants tab on the RHS. Select an object grant to revoke that’s in another schema (or the “Revoke all…” scissors icon) and Toad gets an “ORA-00942: table or view does not exist” error. A SQL grab shows that no owner is specified on the REVOKE statement:
Revoke SELECT on NOT_MY_TABLE from MY_ROLE
The “Revoke all…” also does kind of a seizure-inducing progress window popup on the 4400 revokes I attempted, but I don’t know if that’s because they all failed or not.