Ocean Theme jquery image slider not working

[Felix]

Hi all,
I've been using Deak's Ocean theme on a website for quite a while now, tailored it to my needs for custom content etc.
However I added another pic today (making four images for the slider) but it wouldn't show the last photo.
Tried lots of ways to make it work:
- deleting the bulleted list and re-adding it
- adding lines between the photos
- deleting them all and adding them back in again.
- only having two / three / four images
Nothing seems to work and the last image is not displayed.

System Information:
CMS Version 1.9.4.2

Installed Modules

CMSMailer 2.0.1
FileManager 1.1.0
MenuManager 1.7.6
ModuleManager 1.4.2
News 2.11.3
nuSOAP 1.0.2
Printing 1.1.2
Search 1.6.10
ThemeManager 1.1.4
TinyMCE 2.8.4
CGExtensions 1.25.4
JQueryTools 1.0.10
CGUserDirectory 1.2.4
CGSimpleSmarty 1.4.8
CGGoogleMaps 2.1.4
FormBuilder 0.7
FrontEndUsers 1.12.16
CustomContent 1.7.3
Captcha 0.4.3
SelfRegistration 1.6.10
Gallery 1.4.4
Showtime 2.0.4

Hope someone can assist!