Tabs (as well as accordion and toggles) are not supposed to be used within complicated combination. We can only assure correct functioning of simple content inside of a tab (text, images, standard WP gallery, lists):
Content of hidden tabs is not being displayed. In result, a script cannot calculate height and width of inner elements and cannot place them correctly inside of a tab.
You can try to insert this script LINK in “RAW JS” Visual Composer element directly into page content . But please consider that this solution may slowdown your web-site and work only with limited number of shortcodes.