Fixes from testing vectorization pipeline at agent creation

The issue or feature being addressed

Fixes to issues encountered when creating an agent backed with a dedicated pipeline.

Details on the issue fix or feature implementation

N/A

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• This PR needs to be cherry-picked into at least one release branch
• I have included unit tests for the issue/feature
• I have included inline docs for my changes, where applicable
• I have successfully run a local build
• I have provided the required update scripts, where applicable
• I have updated relevant docs, where applicable