The current version LibreELEC-RK3399.arm-9.80-nightly-20191109-a0d479c-rockpro64.img.gz has the following bugs:
-no connection to the network server (although it exists)
-LibreELEC configuration cannot be opened
-when changing the graphic of a poster a restart occurs
-in some 4k movies the picture freezes. These movies run flawlessly via the integrated player in the tv. So it is not due to defective files.
I hope this helps.
Thanks for the great work.
The system is getting more and more stable.
Most of the movies are running fine and except for some minor problems the system is working fine.