Can you put a Plan View widget from 4.0.3 on a 4.0.2 dashboard between "friended" projects?

We have a customer on CLM 4.0.2.  They are "friends" with 2 other repositories that are on CLM 4.0.1 and CLM 4.0.3.   We're trying to add widgets from those "friends" onto the CLM 4.0.2's RQM dashboard.  Most widgets work fine, but when we add the Plan View widget from the CLM 4.0.3 RTC project onto the CLM 4.0.2 RQM project dashboard, it's stuck on Loading....   forever.  The title of the widget populates with the link to the plan correctly and if we click on the title it takes us to the correct Plan in the RTC project. But it will never display on the dashboard. So at least the linking is working, just not the display.  I've also tried all the plan view types.  Other widgets that are not plans work fine.

When we try putting the Plan View widget from the CLM 4.0.1 RTC Project onto the CLM 4.0.2 RQM Project dashboard everything works fine.

Is there a limitation with placing Plan widgets on a downlevel dashboard (4.0.3 plan on 4.0.2 dashboard)?  I looked in the application logs and couldn't find any errors.