Mandatory information about my setup:

Have I searched the tickets before posting? yes
Have I searched the forum before posting? yes
Have I read the documentation before posting (which pages?)? yes
Joomla! version: 3.3.6
PHP version: 5.4.35
MySQL version: 5.5.40
Hotspots version: 4.2.4
Direct link to the page that shows the issue: http://develop.m-auto.nl/hotspots
Production server: http://www.m-auto.nl/hotspots#!/catid=1


Description of my issue:
Hi Daniel,
Upgraded our develop server with Hotspots 4.2.4 and the category icons that showed above the map are disappeared, how do I get them back?

Kind regards
Fred Boots