Yes, this
getting clarifications one drop at a time, or being unable to clarify things
before doing them.
The KILLER extra topping for me is when you lack any kind of quick-iterative-feedback-loop too. Eg. maybe it's cloud infra done in a braindead way and any way to debug is to do a tens-of-minute-length rerun/redeploy etc.
I'm OK working incrementaly, and even with incremental ambiguity, but I need a FAST feedback loop to iterate.