We've just recently upgraded Portfolio to 3.9 from 2.21.
We found that none of our existing plans could be upgraded to the new interface.
While we couldn't find any documentation to corroborate, we thought this was intentional and that we had to build new plans from scratch.
After doing so we reverted one of the plans to the 2.0 so we could look at some of the old reports and now we are unable to re-enable the 3.x interface.
Is there a setting that's needed to move between the two?
Documentation suggests this isn't by design.
Thank you