Custom Module List View Disappeared

For our site getrealsecure.com.au we have had two Custom Modules disappear from the homepage. Looking into this more closely, the ‘List’ Views for both of these are no longer in the Custom Module. Checking in FTP the List file is there but it is not available in the Admin.

I have had to re-create these List Views in the admin console and they are back up and running again.

Why would they have disappeared from the Admin Console but still be available in the ‘ModuleLayouts’ ->‘Custom’ folder via FTP?