At the request of many users of Mobius we now indicate with a spinner when an impact is still being calculated. Give it a spin!
In this release we have also enabled the tree view in product to product and life cycle to life cycle comparisons. You can still make changes to your product while comparing it to another. But be aware that the changes you make to intermediate products contained in your product will affect other end products that use the same intermediate product too. To make changes in isolation you can use the Scenario feature.