I noticed this too. Zaps have been super spotty on primal lately. Couldn't reply to notes either.. Now I run Alby hub with Amethyst and it's quite reliable.
I have been zapping a few accounts. but couldn't zap nostr:npub1rtlqca8r6auyaw5n5h3l5422dm4sry5dzfee4696fqe8s6qgudks7djtfs who is clearly getting zapped by others. wat could be the issue here. using nostr:npub12vkcxr0luzwp8e673v29eqjhrr7p9vqq8asav85swaepclllj09sylpugg with coinos.
#asknostr #nostrdev

Discussion
I am guessing a different experience on your feed though?
Both clients seem to behave the same but I'm not avid or technical enough to detail all the differences.
Specifically though, zapping on primal felt instant which for me was the main gratification. On amethyst its like a few seconds slower but the zaps always work.
Customizing the zap amounts on Primal rendered them useless and unlike amethyst you cant customize your like emojis etc. These are some misc things I've noticed.
Thank you! Been using amethyst for 13+ months and I like it. However, I get a different feed with primal, for instance @hodl may have not appeared on my feed on amethyst so I spend a few minutes on primal to connect with more centralized group of accounts than my 2+k following... Yes, losing zaps and can't zap seems to be the a real situation here. It doesn't matter if Amethyst work if a lot of people use primal and can't zap you! It's a failed experiment. I am also paying a monthly app membership for primal that includes media upload files which I can't upload successfully. So doesn't seem like the paid membership should have been shipped yet.