After login to dashbuilder random resource displayed instead of application home screen

Description of problem:
After logging into dashbuilder application ranom resource is displayed, instead of home screen of BAM application.

For example user is redirected to :
http://localhost:8080/dashbuilder/redhat/RH-Product-Name.png
http://localhost:8080/dashbuilder/redhat/login-screen-logo.png
http://localhost:8080/dashbuilder/redhat/base.css

Please see video of the strange behavior. Also note the strange login screen of the application.

Version-Release number of selected component (if applicable):
BPMS 6.0.0.ER1

How reproducible:
Always.

Steps to Reproduce:
1. deploy BPMS 6.0.0.ER1 deployed on EAP 6.0.0
2. go to http://localhost:8080/dashbuilder/ and login with some user
3. after clicking login some random resource is displayed (as listed in the description)
4. if you then delete the URL part after dashbuilder context, the application is displayed correctly.