I tried player-led, also I tried watching using pm4k 0.7.9-rev and PM4K 0.8.0-beta5.1 and also directly from SMB server and emmc of ugoos, problem reoccurred in any environment. I am using FEL test file from this post and multiple DV movies. After black screen playing continues normally, no DV logo appears or smth like that. Sometimes black screen remains for longer time, but I cant replicate it reliably.