New field added to profile not appearing in user read only

Hello,

Thank you for making this module. I am using drupal 7, but not sure on the exact number after that - sorry I am brand new to this.

I added a new field in - admin - structure - profile types - account.

I wanted to make it read only, so I went to config - people - user read only. However, the new field, or any new field I add to 'account' does not appear in the 'user read only' so I cannot make them read only.

I have tried uninstalling and resinstalling user read only module, and have tried clearing all of my cache and cookies, but still no luck.

Please could you advise?

It is a similar query to this: https://www.drupal.org/node/1326490 which was closed - but a solution was not given.

Many thanks!

edit: I just noticed that if you edit any of the fields in any way in the "admin - structure - profile types - account" then those fields also are no longer read only (even if they were before) and I also can't make them read only again from "config - people - user read only" because they too no longer appear there.