anyone seen this ?

Uh, no. Cool though, kinda.

stack overflow, overflow

appears to be some kind of recursive relationship in a structure, but it works on some servers with the same data

What's the cf call that leads to that? Can you see?

the issue is a circular reference in a structure

Ah, makes sense. Not that easy for the dump code to detect circular references.

but what I'm saying is that this now failing without a dump...