CJ54 on Nostr: I can only zap successfully on Primal mobile. Whenever I click the zap button on ...

I can only zap successfully on Primal mobile. Whenever I click the zap button on Primal desktop, the button lights up to show it's doing something, but then a second later it reverts to the look of an unclicked button. Meanwhile, I still have the amount of sats in my wallet as before. I wonder if I'm zapping zero sats when that happens.