1) You used a shim
2) Using a shim (especially that thick on 27.2-31.6!!!) generally voids warranties plus the Devinci manual quoted here is reasonably clear on this
3) You have a cracked frame
4) There is no warranty claim
Why prolong this thread? Especially, why try to drag Freeborn down?
Freeborn have a great reputation for trying to do as much for the customer as possible so rather than moan here talk nicely to them. I would expect that the best outcome might be a reduced price front triangle which would still be a decent outcome given the very thick shim you have been using.
Loads of people on here use shims right? Does it void your warranty?
Generally speaking I would expect it to without even looking at the company blurb- It would be much more of a surprise if it was warrantied