kwang
Hello,
Thank you for sharing the logs.
We tried to play some 4K-6K videos with NTFS and exFAT formatted USB flash drives, but didn't encounter choppy playback. When we turned on "Show Stats" in "Global Settings", we could see the network speed was around 22MB/s.
We sincerely apologize for the slow playback you experienced. SKYBOX may not do well on USB compatibility issues and we will try to optimize the USB support in the future. Thank you for your understanding and support!