HTTP 403 error when changing subscriptions

[Aussiemon]

Hello,

When selecting any option in the dropdown of subscriptions, Azure Resource Explorer immediately hits an HTTP 403 error, becomes unrecoverable, and only returns a blank page until cookies are cleared:

After cookies are cleared, the main page loads again at the default subscription, but the same error occurs when changing subscriptions. This prevents the site from being used for subscriptions other than the default.

Windows 10
Firefox, Chrome, Edge (both with existing sessions and in private mode)
Global Administrator in all subscriptions

This might be related to #359 and/or #360, which have been unanswered for the last year.

[Aussiemon]

Could be caused by:

If this refers to being an external AD user in the subscription's directory.