A note about wallets: Mobile and desktop wallets connect to remote nodes/servers. Some users are experiencing connection errors or internal server errors when trying to send GRFT from these wallets. The only "fix" for this is to try again until it works. The CLI wallets run a local node on your PC, so you will NOT experience any connection or server errors. I recommend the CLI wallet so you don't have to rely on remote nodes/servers.
GRAFT CLI Wallets: https://www.dropbox.com/sh/3f08lgk3zn6gm0w/AACP2RT2uDqdeMlPJxbhGNL1a/Wallets?dl=0