Sugar snaps

I grew sugar snap peas for the first time this winter. Pretty basic, right? I have had a development that has puzzled me, so hopefully, wiser gardeners will give advice.
My first crop of pods were fabulous. Fat, sweet and juicy.
Lots more flowers happening, and a beehive in the garden for pollination.
However, the following pods are all nearly empty.
Duh???
Any thoughts?

Did you experience temperatures above about 27–30°C / 80–86°F?

High temperatures reduce pollen viability.
If flowers are exposed to prolonged heat, they may still produce pods, but the embryos fail to develop, leaving the pods empty or containing only tiny undeveloped peas.

Another frequent cause is water stress. Peas need consistent moisture during flowering and pod filling. If the soil dries out at this stage, the plant may abort seed development to conserve resources. The pods continue to grow, giving the impression that they should contain peas, but they remain empty.

Almost certainly the heat catching up with them. Peas set pods brilliantly in cool weather but once temperatures climb the flowers still open, pollination just goes wonky and you get those flat empty pods. Your first flush got the best of the cool season. Not much to do now except keep picking what does fill and aim for an earlier sowing next year.

Yes, as Joao says, just keep picking and treat as snow peas - I love both, mostly because the pods don't head for the compost - saves work. . .