Failed to open map file. This is most likely because the map was saved with a newer!!

[kays3d]

Thank you so much, it works for me.

Some steps that I might to add from this forum How to open from Autosave?

1. move the uasset and umap files from the autosave folder into the content folder.
2. now you should see the stuff in the content browser.
3. go to open map - choose the map in the content folder.

Thanks!