[oasi]

Leo

You have to set the option "Disable BB Code Within This BB Code" to yes when you add the gmap code...

I think the problem is that gmap takes as parameter {param} all the content you put between [gmap] and [/gmap], but if the url BBcode is also between [gmap] and [/gmap] other different {param} value is appeared and the gmap addon can't catch the value for the iframe, and the content appears 2 times, but without a valid value.

There is no workaround with this I fear ...

Despite of this, in my forums I use the WYSIWYG editor and I'm not having all these weird problems, I don't figure how this is happening if you verified those values

Use {option}: -> No
Remove Tag If Empty -> Yes
Disable BB Code Within This BB Code -> Yes
Disable Smilies Within This BB Code -> Yes
Disable Word Wrapping Within This BB Code ->Yes