Does anyone know how I can log this with apple support without having a focused test project to pass over? The file being downloaded seems specific to the devices and not my app. Not sure where to go with this at the moment. Thanks

Did you manage to get anywhere with this? Have you checked what links are being downloaded in the Sysdiagnose files on the device? I have an issue at the moment where everything looks good in the CDN, but the links being download to the device when the app is installed are not bringing new links down (but still showing old ones). Any ideas?