Export don't work anymore

Hi, I have latest version of DraftSight 64bit installed on Windows 10.

When I tried to export any .dwg file, export produce only 0 bytes file. Only possibility that works is export to .pdf, but not to .bmp, .emf, .wmf,...

I have even activate 30 day trial of Pro version, but no luck.

Also, I've tried to reinstall DraftSight - no luck.

Tried to install to another PC (win7/64) - no luck.

 

Everything mentioned worked on my PC before few months but not anymore!?

Please answer me is it anything else that I can try?

 

Emir