My level is missing

I’ve been working on a level all day and had just added some plants with the foliage brush. After a playtest the editor was making some of my terrain and rock formations were missing in the editor so I saved all and closed Unreal. When I restarted the project, Unreal made a new default terrain level with nothing in it. It’s all gone and I don’t know how to get it back.

Hey there @RippinDev! Welcome to the community! Were you working from a core editor starter content level like Minimal Default? If so, versions past 5.0 have an issue where they do not save changes to the starter maps and you must make a duplicate to work from them. If that’s not the case, is your level uMap file in the same location?