I am the admin of my organisation and I can create feature templates in a web map however when other users attempt to add a new feature template, via a web map, they are met with the following error.

The feature template is added for the current session they are in but when they reload the map it disappears and reverts to the original settings. I understand they are not the owners of the layer but should it not work if they create a copy of their layer and save it to their content?