Stage and Thumbnails confusion

Hi all,

Using the nextGen Pro plugin but can’t post to support even after updating my account!

I created 277 galleries a while back on a clients Test site which all work fine. Ex. below:
http://www.smti.duck-dive.com/hotels/st-regis-mardavall/

Last week I added 10 or so more and for some reason the plugin is confusing the stage and thumbnail containers. Example below:
http://www.smti.duck-dive.com/hotels/the-alpina-gstaad/

I haven’t done anything out of the ordinary (I think) and have no clue what could have caused this.
Thanks in advance for any help.

Regards
Chris