also, unless it's very late in process, this is a super bad sign. I had a plant that regularly did this. It was one of my first plants i grew so i thought it was normal at first... it is not. good genetics don't herm out easily at end or any other stage. You let something go for several extra weeks and it increases chances, but in a more normal harvest window it should not occur. If it's happening on all the different seeds you've grown of that strain, i'd avoid that strain in future.