Environment: OES 2 Linux x 1, NW65 x 1

I use ncpmount to mount a volume residing on NW65 to the OES2Linux server. The volume is mounted successfully. When using ls to list all the files/folders, only part of them are seen and most files/folders with Chinese characters and some non-alphanumeric characters are not listed and accessible. Below is the command I use:

ncpmount -S NW65 -A -V data -b -p cp950 -U admin mount_folder

I also tried without -p.... but in vain....

All these files can be seen on my PC desktop and I can manually copy them to the OES2Linux using the PC.