Q: Even if it shows in the preview window I cannot get my signature to work!
A: That is correct, you need to be part of the Templari usergroup first.
Q: But I am a Templari?
A: You need to enbale the signature in your profile
Q: But I did that?
A: Did you make a new post? It should work, if it's an old post, check to see if the 'signature option' in the post option is ticked (edit post, check options)
Q: Still not working?
A: post here with details