iCal URLs now returning 403 Forbidden responses

As of August 30th 2024, the iCal URL for our troop started returning 403 Forbidden responses.
I’m not aware of any change that started requiring authentication.
Nothing on this documentation page mentions authentication.
https://trooptrack.com/help_pages?page=60
Please either change whatever changed back or document how to authenticate.
Thank you.
Example iCal URL that is now returning 403’s
https://troop457zelie.trooptrack.com/troops/mVY60UNc4LuQ8Q3mtY41SA/calendar

@JustinFiore, I did have this error this last weekend however I checked today and am no longer getting the error message.

It has started working again as of about 24 hours ago.