Twitch doesn't work well on RPi 5

Finally there is a stable release of libreelec for the rpi 5. I am trying to watch Twitch with it, but after watching a while, it reboots or something like that. Suddenly the system is booting without shutting down first. Don't know what is happening there. And sometimes when i try to start watching a stream, it shows black screen, only sound is working. After stopping and playing again, it sometimes works, sometimes not. I don't know anything about log files and where to find it. If any log files needed, i would be thankful when helping with finding the log files. Any help or bugfixes would be great.