Still seeing 403 with "Not Found On Unviewable"

[ivp]

Have "Not Found On Unviewable" installed, but still seeing 403 when accessing the following URLs:

/search/member?user_id=123
/watched/threads
/login/keep-alive
/profile-posts/1570395/
/members/xyz.426641/ (banned members)
/find-threads/started
/find-threads/unanswered
/find-threads/contributed
/conversations/xyz.6745285
/approval-queue
/account/reactions
/account/signature
/account/visitor-menu
/account/alerts

Also wondering how to enable "When unviewable, return "Not Found" instead of permission denied" for all nodes, not per node, it's a daunting task?

Is it possible to alter header status code to 404 only, without altering page output itself?

 

[Xon]

The 'When unviewable, return "Not Found"' is currently just for nodes; not everywhere. Probably should make it extend to conversations

To enable it for all nodes this SQL can be used;

update xf_forum
set notFoundOnUnviewable = 1;