Failed to create editor preview world

I’ve got a C++ project set up which I’ve been working on for about a month and this morning it’s decided to output the error **Failed to create editor preview world, **when running PIE.

There’s nothing in the logs and an online search doesn’t come up with anything.

I did a shipping build on Friday to send to a colleague for testing, so not sure if that has messed something up, although I’m not sure how that could be.

I’ve tried, deleting the binaries, intermediate and saved folders, and rebuilt, but nothing seems to work.

Has anyone else come across this issue?

I figured out what I did wrong.

I was calling StartGameInstance in StartPlayInEditorGameInstance !