If you are a legally incorporated business that we can verify, yes, I believe so. If you can email us with more details at marketplace-support@unrealengine.com we can look into this with you.
That is correct. I’ve removed some content from the Marketplace recently because it has not been updated. It’s still available to paying customers, but it’s not available for purchase until the updates are made.
And yes, we had approximately 450 updates to process by hand in order to bring everything up to compatibility with 4.9. It’s been extraordinarily time-consuming and we’re still finishing the updates. Fortunately, there is very good news! Just this week we’ve developed a system for automating testing for most Marketplace content, so that by the time 4.10 comes out, we’ll be able to safely and automatically update the majority of the content on the Marketplace to the latest engine version shortly after release. For content that is not compatible between versions, we’ll notify them and request updates within ten days. When 4.10 comes out, this entire process should be complete in a matter of days. 