-Image dispay within a tab results in reset of all the tabs.
-A Switch between code an visual view in one of the content elements will make all the text go blank (white).
Browser used: FF 24
Hey swissfilm!
1) Please update to the latest version Enfold 2.3 and check if this solves the advanced builder bug.
2) If not, please check your allocated php memory and increase it to 128M if necessary ( http://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP )
3) If 2) doesn’t help deactivate all third party plugins except woocommerce and bbpress and check if the plugins affect the layout builder in some way.
Regards,
Peter