Some Chinese characters are invalid file names?

[northwind]

During the process of using the software, I found that some Chinese characters could not be uploaded and were judged as invalid file names. For example, these Chinese characters, "表", "财", "务", "总". Due to time constraints, I did not find all the Chinese characters that were deemed invalid. Delete these Chinese characters and the file will be uploaded successfully, I hope your company can resolve these issues as soon as possible.

[FTP]

Yes, because Windows Explorer is not a professional FTP client, it doesn't support UTF8 encoding perfectly.

Anyway, you can try to check on the following option:
Domain > Settings > General Settings > Miscellaneous > Enable FTP command 'OPTS UTF8 ON'. If still no success, please use FTP client software instead of it, like Filezilla or our FTP Rush.