Robert,
I had this same issue with the JUX Ken Burns Slideshow stopping on the first slide after one rotation and submitted a Support Ticket and the issue was resolved. Here's what Support's response was after fixing the problem. About your problem, I have edited the code on our products as follows
In source: \modules\mod_jux_ken_burns_slideshow\tmpl\default.php
at line 174 : loop: <?php if($params->get('loop',1)==1) echo "true"; else echo "false" ;?>
I checked on the code in CPanel and found that this line of code was actually on line 169 on my install. But if you can find that line of code at or around line 174, change the "1" to a "0" as mentioned in the instructions, it should fix your problem. I recommend you make a backup of the default.php file before making any changes.