I zap-out with Minibits and zap-in with self-hosted Alby Hub, and that usually seems to work.
Discussion
I get over half failures when trying to zap with minibits.
I'm not ready to bother self-hosting lightning.
Do you have Minibits open, on your cell phone, while you zap? Are you using Amethyst? It seems to register very slowly, on there.