Hey Duddee:
Thank you for the report. I was able to reproduce the bug in 4.17 and noticed that it was not a bug in 4.16. I went ahead and logged the bug. If you would like to track it, you can follow this link: Unreal Engine Issues and Bug Tracker (UE-49832)
Let me know if there is anything else that I can help you with.
Best Regards,