Steps to reproduce using npp.6.1.8.bin.zip:
1) Make sure NPPTextFX is enabled
2) Settings:
TextFX > TextFX Viz Settings > +Viz Copy-Cut always converts to CRLF
TextFX > TextFX Viz Settings > +Viz Paste converts EOL to editor
TextFX > TextFX Viz Settings > +Viz Captures Keyboard Ctrl C,X,V
3) Restart NPP if necessary
4) Create a multi-line file with LF line endings
5) Select and copy several lines of text
6) Paste into Windows Notepad
Result: Lines are pasted into Windows Notepad as 1 long line with embedded LFs
Expected: Lines should be pasted into Windows Notepad as multiple lines with LF converted to CRLF
I haven't look at this deeply, but it seems to be a long standing bug. It is not present in the *ANSI* NPPTextFX.dll from npp.5.0.3.bin.zip, but may be present in the Unicode version from around then up to present. This is a show-stopping bug for me, that requires I stay with ANSI NPP 5.4.5 and NPPTextFX.dll from npp.5.0.3.bin.zip. :-(