AutoCAD Inventor :: Bend Part Doesn't Work With Thread Feature Present

I've attached an example of a workflow we use to make different instances of products.part1 gets assembled in assembly1 which then gets derived in part2 to receive a bend.We use assembly1 in one place and part2 in another.(this is a simplified example, made with IV2013 SP1.1)

In part1, if you add the thread feature, the "bend part" feature in part2 fails after updating.This also happens if you try to add a "bend part" to part1 AFTER the thread feature, if the bend is present beforehand it does work.

Having the bend before the thread feature in part1 doesn't work with our workflow, because we need the assembly1 to be straight.In short, the thread feature is causing problems with "bend part".

I can't say if this problem was present in previous versions or even in the previous service pack since we don't use this workflow that often, especially with threaded parts, but i hope this can get fixed with a hotfix.

Using IV2014 Pro SP1 update 1, Win7-64bit