Hello @Andrew Gwilliam
It seems like the issue is related to the difference in the two custom policies. The original policy allows users to refresh their token and only requires them to sign in once every 90 days, while the new policy requires users to sign in every time they open the app.
Based on the information you provided, the only difference between the two policies is the section you mentioned. It's possible that this section is causing the issue.
I would recommend reviewing the section in both policies to ensure that they are identical, and also checking if there are any other differences between the policies that could be causing the issue.
I hope this helps.