Issue Rewriting Links in AngularJS 1.6 Application

Hello all, I currently have an application that uses AngularJS and it is setup behind APM as a Portal Access resource. The application was recently upgraded and now some of the links (f5-w-INTERNALserverHEX) are no longer being rewritten or included. This worked fine before the App was upgraded. It was discovered that the older version of the application ran on AngularJS 1.4 and the new runs on 1.6. We are currently running v12.1.1 HF1 on our F5s. Is this a case that I need to upgrade our F5s to a newer version to support the application or does this warrant a case with F5 support for a deeper dive?