Hi, I'm testing Alpha 8.90.005 on my Wetek Play2, running LibreELEC on a microSD card.
The player is connected through HDMI cable to my Marantz NR 1607 AV receiver (then another HDMI cable connect the AV to my Sony smart TV). This setup works perfectly with LibreELEC 8.2.5 based on Kodi 17 Krypton.
With this version, instead, after some seconds the video signal is turned off (black screen on TV). If I turn off the receiver (using it only as passthrough), the video turns on . Sometimes happens vice-versa. The video signal goes down, and when I turn on the receiver, goes up. It seems to be something relating to HDMI handshaking.
Attached to the receiver I have also a UltraHD player and other two devices, but no problems with them (and no problems with previous stable LibreELEC versions....)