Hi Henk,
I haven’t had the chance to try the latest 4.10 version with the EyeX plugin for UE4. The latest version I’ve verified it works with is 4.9. I’ll put up a work item to integrate the EyeX plugin with UE 4.10. In the mean time you are of course welcome to just try and pull the v/4.9 branch and see if the EyeX demo scenes seems to work as expected with 4.10, and file an issue if they don’t, or even better a pull request if there is something you could easily fix yourself 🙂