This issue was subtle and I might have never noticed it if it weren't for you reporting.

It required 

1. having a wallet attached
2. the wallet failing to pay
3. the thing you're paying for being something that we don't automatically retry payments for

I hadn't tested all of these together. I know you have to do this `never again` but this is fixed now.

I got the pop-up notification for a successful transaction but the amount was "NaN" and then the page just idled with the save button saying "paying".

The error I saw in the logs just said that the invoice timed out.

Hopefully, that helps.

Undisciplined

Hmmm it should’ve errored and showed a QR. Congrats!