I would suggest sending an e-mail to support@trooptrack.com as this is not something that Community members can help with. TT is busy and understaffed so it will be quite some time before they get back to you. While there have been a few reports from others of this happening it does not appear to be a system wide issue so perhaps there is something specific to particular units that might cause this but again that will be something the TT support staff would need to dig into.
Specific to the UNASSIGNED SCOUTS vs Unassigned patrols, it looks like your Unit created UNASSIGNED SCOUTS as a custom Patrol. Unassigned is a system generated Patrol which is used automatically for any members that have no patrol assigned either at time of registration or if the Patrol is removed from a members profile.