I can't paste text from Internet sites into NWE 2.1.2. I get the dreaded beach ball forever, and when I go to Force Quite, it shows Nisus Writer as "not responding).
The copy and paste mechanism uses much of the same code as the file saving system. If you are experiencing problems with both it is likely they are related.
Running the release build of 2.1.2 that I just downloaded from our website, After successfully pasting content from several sites I found some content that does indeed crash. Working on a fix now.