Round robin issue

So I’ve made a simple sampler instruments with some hits in a reverberant room, I’ve loaded them all up with some velocity layers, and set all samples to play as one-shots as I want them all to play to the end. Three round robins. Whenever I reach the third, though, it doesn’t play as a one-shot. Can’t seem to find the samples that don’t play back the way I want them to. How do I troubleshoot?