Unknown Peach/Nectarine blossomed, but no fruit

My peach/nectarine tree (grown from seed) of unknown variety finally blossomed this year. I’ll take some more pics this weekend. What confuses me is that my Tropic snow peach that blossomed much earlier set a bunch of fruit, but this one even though it blossomed hasn’t set anything…I know they’re self-fertile but wondering if it might be a pollinator issue. Thoughts?