duplicate h5p after composer installation

hi there, after installing with cd /opt; composer create-project opigno/opigno-composer opigno I get two versions of h5p. One in /opt/opigno/web/modules/contrib/h5p/vendor/h5p and one in /opt/opigno/vendor/h5p. For some reason php loads some classes from one and other classes from the other. This results in 500 errors whenever I try to use some h5p features. As a workaround I symlinked /opt/opigno/vendor/h5p to /opt/opigno/web/modules/contrib/h5p/vendor/h5p but I don't think this is a permanent solution. Has someone encountered that problem before? Thanks Clemens