After upgrading Drupal to 7.3.8 (don't know if this is related), I'm getting an error when a user logs on and belongs to groups/holds a role that is set up with CiviGroup Roles Sync.
Role groupname (group id) should be held by user username (drupal user id) because they are part of group id (contactID: civi id)
When I check the user's groups and roles, they appear to be correct. The error is listed in dblog for each group that they are a member of.
Groups are regular groups, not smart groups.
Appears to be happening for all users.