Model: Z3000 PRO Software Version: v1.1.47 In MKV files (and maybe also in other formats) when changing the chapters one after another with the remote control (page up or up in the arrow buttons), it's sometimes suck on the same chapter, and it will change only if you wait 3 seconds from one to another.
It's the same in v1.1.70. Skipping forward by chapters requires a few seconds between button presses and skipping backwards is quicker but chapters are missed. Definitely a bug.
Its solved on version 1.2.01 and its worked good but not great, still the next chapter sometimes stuck on the same chapter and doesn’t switch to next chapter