Hello, I am using hyperion since 2 years on a Raspberry Pi (first Pi2 then since 3 month on a Pi3) with Libreelec without any problems. But since the new version of Libreelec (188.8.131.52) and an update on Hypercon/Hyperion I am getting (sometimes) a black screen on enabling hyperion and the TV shows "No Signal". On disabling hyperion the picture comes back. The sound plays, so the movie/TV plays and even the hyperion backlight shows the colors, but I can't se the picture. I am using the internal grabber, Config files are appended. I wrote "sometimes" because it's not always and that is very strange. I thougt maybe it depends on the TV channel (HD or SD), but it don't. Sometimes the cahnnel works and sometimes not. But in most cases not. What can cause this?! Thanks for help!