Description of the problem including the determined cause:
Almost all h/p/cosmos treadmills built in 2014 and 2015 (except for some models with safety arch) are equipped with a red ripcord and a clip (article number cos101699) that stops the running belt automatically through a magnetic switch in case a fall occurs in order to minimize the effects of the fall.
A malfunction of the ripcord has no additional fall risk, because even a properly applied and functional ripcord cannot prevent a fall!