Version 7.0 (16657b) Error "Exception while exporting site"

I am getting this a lot … it happens on a stacks page in RW7 but not in RW6 usning the same setup

Error: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]

Could we get a project that shows this? Thanks!

be happy to … although I think I’ve got it sorted down to a charset issue … I am seeing certain charsets that are causing this when going from utf8 to say latin2