Unable to deploy custom theme

I have created a custom theme for my project (modeler 3.1.1). Originally I used an outdated version of the custom theme template (version 2.5) which caused some issues with version management. I successfully solved those issues using tortoise 1.6. Although the custom theme looks fine when deployed locally, in the cloud the custom theme is ignored and the default theme(s) are displayed. Is there a cache I need to clean? If so, how?
1 answers

Not only was the theme not working, there was also some functionality missing. A database synchronisation in the cloud did the trick.