HELP! Parts of my level are visible while playing my game but are invisible while editing it

Hello, I’ve been making a project using the Infinity Engine for UE5, and for some reason, the most recent portion of the game I made last time I loaded up this project just has parts of it invisible in the editor, but when in game they’re completely fine! New objects I add can overlap, but I can never edit or select the original objects I placed in. In game collision and blueprint behaviour act as expected, but in the editor they’re completely invisible other than the landscape and half the building I added, please help! Screenshots attached below:


^ in the editor


^ in game