Did you let the top sit in the sun prior to installing to warm up the material? I scoured the internet prior to getting mine, and from what I understood, if you don't let the material stretch and soften up prior to install, you can pop the stitching. This was the only common issue with the TrekTop NX, and it also seems to occur more with the black diamond over the twill tops. I would recommend uninstalling and checking that your door surrounds are flush with their mounting locations. Hope this helps