Proposal Test Returns: "Impossible to access an attribute ("appointedBillingSpec")"

[gkobilansky]

Navigation:

1. RIA -> Proposals
2. Click 'View and Test' button at bottom of screen
3. Answer all questions and click submit.

Full error message:
Impossible to access an attribute ("appointedBillingSpec") on a null variable in WealthbotClientBundle:Portfolio:_portfolio_details.html.twig at line 12