Hi, I am super happy to hear that LibreElec 10 will also land on the Cubox-i! I already installed the nightly from 1.5.2021 and my first impression was: wow this is almost even faster. At second glance, however, some things did not work. For example, videos that I had recorded with the last working LibeElec version for Cubox-i were played in a wrong format and not synchronized with sound and video. And partly the playback was quite jerky. I read here that testers for the iMX6 platform are wanted: Upcoming changes – LibreELEC
I'm happy to help if you tell me what tests you need and what debug info.