I thought I’d make a step by step video tutorial to help show how to create a virtual tour using the Street View app. Hopefully you’ll find this helpful.
Update: Unfortunately the Street View app has had a really annoying bug that isn’t saving connections, It has been like this now since mid/late 2018. The only way to upload a fully working tour with arrows for now is using Street View ready virtual tour sites like Pano2VR, Panoskin or Tourmake etc. Your other option is to uninstall the current version of street view and then instal an old version that actually worked and to do that you’ll need the apk installation file, you can find them here.