they have fix the bug and reopen
I presume this is the link you were talking about (as you did not provide one).
https://bbs.himedia.cn/thread-227113-1-1.html
Version numbers are the same, their build number is older than Futeko, but their date stamp is more recent!
Their Version/Build Number: - Firmware Version: HMD-2.1.4 2019-08-26.170512
Futeko Version/Build Number: HMD-2.1.4 2019-05-31.171152
Changelog:
1. Full support for ASS dynamic subtitles
2. Optimize caption compatibility, solve the problem of partial subtitles not showing
3. Update HD Cinema Revision, new UI Load faster, better Experience
4. Solved the problem of abnormal display when playing unconventional resolution video when AV video is lost
5. Improve the compatibility in the connected of the power amplifier (e.g. when some amplifiers are playing, there is occasional buzzing problem)
6. Update The 8.2.03 version of music cast.