Since some of updates (not last 10 bilds) we have problem with russian filenames attached to case, attached to email in case or in all Solutions. 

After Downloading all russian symbols are replaced by spaces. 

If filename in english - thak is OK. 

Current version of Service Desk- 9207.

Current Browser - Google Chrome

Try another Browser - Microsoft Edge - same issue. 

Is  it  issue in ServiceDesk or maybe it is Java problem?

How can we correct this problem with russian symbols? 

Thanx for you help.

See screenshots below: