Screen Cast doesn't find TVs / Jiayu S3-8.1-madOS2.1

Screen Cast doesn't find TVs. I've got two Samsung TV's. In LP Screen Cast worked perfectly. In 7.1.2 (latest releases) the phone find the TV, but right after etablishing connection, it crashes. The TV supports screen cast, I tried with other smartphones (a Samsung S5). I tried both activating or not wirless display checkbox. It works with all cast app