Yep I've been testing other features (lightning address, ecash commits...) and opened 2 tickets so far. I don't worry much about zaps because failure could be the mints lightning node channels aren't well connected. That can happen with any lightning node or LSP. Today I had a zap fail from breez to an alby node address. Totally unexpected but it happens. Had to use the node I run on voltage to do the zap.

But yeah I like the app. Really want it to be useful for normies.