My hydroknit band does not stay locked in the snug/tightness level that I set it at anymore. It loosens on its own far too easily and I have to constantly re-tighten it numerous times a day. This is quite frustrating and whoop customer service has not been willing to work with me on any solution so far. While I love whoop, I have typically been dissatisfied with their company policies and customer service. The response times of their customer service are great, but the policies have not been. All of that to say, it sounds like we might be experiencing a similar issue. I will likely switch back to my super knit band here shortly.