The Imported Destructible Mesh chucks are not to scale when compared the original mesh and appear much larger.
This was reported and tested in 4.23.1 (CL-9631420). This was reproduced in 4.24.3 (CL-11590370), 4.25 Preview 1 (CL-11723679), and Main 4.26 (CL-11929415).
Results: The imported Depth 1 mesh is larger than the Depth 0 mesh
Expected: Both destructible mesh depth should be the same scale
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-90244 in the post.