I had this problem with the same type of wheel a couple of months ago.
On a week in the Lakes, went for a ride, came back minus 2 spokes, took the wheel up to Whinlatter, 2 new spokes installed but 2 more pinged out while being tensioned, another ride, another failure, one new installed and another pinged out in the workshop. Rubbish aluminium nipples failing after approx 9 months.
Took the wheel back to Bikescene (where the bike came from) they got in touch with Specialized who let me have a replacement wheel for half price. I’ll be rebuilding this one with different nipples at some stage.