If you make any modification in the source code view, and save, the changes are not picked up. You need to do a modification in the WYSWYG view. There are also some buttons in the toolbar that are not working, such as create links and other. All the buttons need to be verified, and removed if they don't provide any valuable functionality.
Removed table and links group buttons. Commits: Master https://github.com/droolsjbpm/jbpm-form-modeler/commit/98f3d8884052e77d89c15cd886d8801dfa546847 6.0.x https://github.com/droolsjbpm/jbpm-form-modeler/commit/105e0d0c60addb13769611ab777f481a91bff757
Allow different html tag in html editor code Master https://github.com/droolsjbpm/jbpm-form-modeler/commit/16bb026f1ade206ec76a2deeb0df7defc8f1688f 6.0.x https://github.com/droolsjbpm/jbpm-form-modeler/commit/66fbf287c39220b691b544732fde55cff3535eba
Allow save changes after return of source mode Master https://github.com/droolsjbpm/jbpm-form-modeler/commit/4d797358fd739934b582e31e477ee14149d65107 6.0.x https://github.com/droolsjbpm/jbpm-form-modeler/commit/e4957413ae2f1f4d37082c3924df04672e471de8
Verified on BPMS 6.0.0.ER5