Unreal Engine 4.24 Preview

I’m getting a crash in MeshDescription similar to this, but only on a source build (I’m using
14.22.27905 so shouldn’t have the code gen bugs). I did a stock build checking out the 4.24-preview-2 tag with none of my custom changes, and do see the crash when opening a specific asset. The crash doesn’t occur when I try opening the same asset with the launcher version (currently at preview 2).