Check if qlik sense provided css files are not conflicting with the styles in your mashup. If you see the conflict, try adding below style in your web page. Qlik provided styles should have higher priority to have all the qlik sense native features working
I could not find any conflicting styles, but I discovered that the problem primarily arises when the objects are placed inside a bootstrap carousel. On the fitst carousel page, displayed on initial pageload the tables are scrollable, only on other carousel slides the scrolling is not working.
Are there any known conflicts with bootstrap carousels?