Errors encountered running Requirements Datawarehouse jobs

The Requirements and Common Data collection jobs started failing after being content for quite a while. I do not know what has changed in the environment.

Prod Env:

- IHS Reverse Proxy
- Unmanaged WAS 7.0.0.21
- Oracle 11g
- LDAP

Sandbox Env:

- Tomcat
- Oracle 11g
- LDAP

I changed the data warehouse password in Jazz, LDAP and oracle.

- Tomcat: Common and Requirements now work.
- WAS: Common works, but the requirements job is still failing.

I am getting a few pages of stack traces and logs in jts.log when I run the requirements collections job. The errors below show up multiple times.

- ng.server.services.requirements.RequirementsService
NullPointerException
at com.ibm.rdm.fronting.server.services.requirements.intermal.RequirementGetRequest.udateRequirementModelWithSystemProperties(RquirementGetRequest.java:261)
- com.ibm.rdm.fronting.server.exceptionUnexpectedResponseException: HTTP/1.1 403 ...

I do not know if the following are related:
- https://jazz.net/jazz/web/projects/Jazz%20Foundation#action=com.ibm.team.workitem.viewWorkItem&id=177105
- https://jazz.net/jazz/web/projects/Jazz%20Foundation#action=com.ibm.team.workitem.viewWorkItem&id=201627
- https://jazz.net/jazz03/web/projects/Requirements%20Management#action=com.ibm.team.workitem.viewWorkItem&id=56518