Hi! Can you confirm if you are running Windows 7? Unfortunately the latest version of Unreal Engine (4.25.1) broke windows 7 support. We will update The Baby In Yellow as soon as 4.25.2 is released. Sorry for the inconvenience!
Looks like 4.25.2 was released a day or two ago! I'll update our build ASAP :)
I have updated the build. Let me know if that fixes your issue, thank you!
