I have had a similar issue, and it turned out to be the fault of some bastila appearance files.
Qliveur has given this suggestion in a help thread located elsewhere in these forums - I'd provide a link but I forgot where it was
Search your override folder for any and all bastila00*.ut* files... I believe they are either .utp or .utc files. When I removed those files (and only those) from my override folder, I was able to successfully complete the cutscene and land on the star forge. For whatever reason, the Dodonna cutscene cannot handle modifications to those Bastila files.
Hope this helps!