1. What happened
When importing some Speedtree assets user get a console error 'SpeedTree materials need to be regenerated'. And there's no obvious way for a user to find which of the assets are affected. I had to manually click through all speedtree assets to find the ones. And I only had few of the assets. But actual users may have many of those. This is a usability bug that needs be addressed.

Expected: affected speedtree model should be opened on double-click in the console on the error message. Additionally, the error message may contain info (link to docs) on how to bulk-edit the models, given there's a way to do it.