Home page links to old task list (for example doesn't have refresh button), not new task list based on datasets. Please also double-check the product home page (which is different) and the BRMS home page (both community and product) for correct links.
The community home links to task and processinstances have been updated in branch 6.3.x https://github.com/droolsjbpm/kie-wb-distributions/commit/3d7b576a1e49cd36c99a39323aeda71170a69cd8. master https://github.com/droolsjbpm/kie-wb-distributions/commit/239fea53e0d4b8b0d3a81bbb57c54b64aca45506
Since there are no links in product BZ won't be verified. Closing