I noticed an error that I suspect it is a bug.
When I use the web clipper on Chrome on my Ubuntu and add a note with a tag I just created in NixNote, an error appears in the notes that have been categorized in this new tag.
This new tag is blank.
Example: A tag called "tag". So what makes the first synchronization, all the notes that were in that category change its name to "".
NixNote - Version 1.5
Ubuntu 14.04 64 Bits