I am not seeing charts in my reports deployed to Tomcat 7.
What version of the BIRT runtime are you using?... I've see a few others reports around the Internet the same issue with a couple of suggestions that I don't know will help or not
The next version of BIRT is due out in about a month (June 28th) so it may be worth trying the 4.7 milestone build you can get at
OpenText Analytics Developer Communityhttps://forums.opentext.com/forums/categories/analytics