No Bootstrap-Styles in Frontend

[roemer-ag]

Hi Laxap.
After upgrading from 9.5 to 10.4 and changing gridelements (10.0.0) to dataprocessing (incl. canging bootstrap_grids to dataprocessing-Version (2.2.0)) the Content inside the Grids is shown in the Frontend, but there is no no bootstrap-specific markup.
... only the common

without <div class="col-....> etc... So you got a Tip for me if I doing something wrong?
Thank you a lot, Christoph