Chinese (Taiwan) selection doesn't work

When I tried to install reactos trunk, I selected Chinese (taiwan) as my language in the first screen, but after a few screen, it hanged at "The list below shows the current device settings".

Even I chose Chinese (HK or Macau) as language, I was able to continue the setup, but after a reboot, it said "Language Default setting exists, but isn't readable".

Also, If I chose English version, I was not able to select "install Asian Language support (something like that), (it didn't tick that box)" in the graphical regional setup screen.

I happened to both Virtualbox and real hardware.

Any comments?