www.wysiwygwebbuilder.com

Preloader dropdown is empty and so is the corresponding folder in C:\Users\(myname)\OneDrive\Dokumente\WYSIWYG Web Builder\system\preloaders

Where can I find the preloader files?

Maybe you have changed the system folder in Tools -> Options -> Files & Folder

Related FAQ:
http://www.wysiwygwebbuilder.com/forum/ ... 10&t=76719