Thats a… really not recommended fix. I don’t officially support this. But hey, if it works.
The reason this works is because the demo was made with a preview build of 4.8 that didn’t have this bug introduced. Luckily it works because this is a blueprint only project and by sheer luck you aren’t getting any functionality conflicts. So again, highly not recommended, but I won’t stop you, I’m not a cop. Also, you are clever.