Permission Slip button disappears for all events after adding new scouts to troop

Seems to occur when adding new scouts to the troop.

Affects all events that are set to require permission slips.

Permission slips button/option no longer exists for all except admins.

Our Troop is having a similar problem. The Permission Slip option is no longer visible for the majority of our parents for calendar events. It’s disappeared from the top of the calendar invite.