I use Nostur and this method fails like 5% of the time. You’ll get a zap animation but the wallet of satoshi app won’t open.  

 In this case it’s not properly set up at the recipient’s side I thought…. 

 Nope, this will come up: I just have to zap them again and it works fine 
https://nostrcheck.me/media/134743ca8ad0203b3657c20a6869e64f160ce48ae6388dc1f5ca67f346019ee7/8a0e18c431ef632ba179d13d46fbff34ea6d220104d96e36d350b16443f742ad.webp