Update (June 2018): Please note that the document in this article is no longer valid. For issues with 3D Warehouse occuring in June 2018, please refer to this blog post.
If you used 3D Warehouse from within the pCon.planner during the last few days, you might have been confronted with the following message that also comes with little constraints in the use of 3D warehouse:
But don’t panic. We have a solution!
This PDF provides further information on the background of the issue its solution.
After following these steps, accessing and using 3D Warehouse from within pCon.planner should work as usual.