japanese user reported that when they exeute below operation, thejapanese characters in preparation field change into blank sqare. But other field can show Japanese word correctly.

The operation user did which could cause this issue are:

NG: Repair E-Notebook client.

NG: E-Notebook Uninstall, then Install　and then restart PC.

NG: Recreate fntcache.dat, and then restart PC.

NG: sfc /scannnow　-> Restart PC. PC -> E-Notebook UninstInstall/Install .

And then delete ELN cache under c:\user\(sid)\AppData folder.

NG: Log in PC as other user, and then login ELN, Read experiment of himself or

Experiment of other users, Japanese character are all shown as blank square.

When they click the blank square,they found that the font type is shown as blank.

So, the question is how to restore the Japanese character coreectly?

Thanks!