The area boundary function continually cuts off small areas that we need to include in our area calculations.
Per our vendor:
"In 9.0 room and area boundary detection was switched to more robust algorithm with the goal of no more missed detections of bounded rooms or areas. As side affect code extended use of gap patching to narrow channels which would not fit reasonable human (up to 6-12")."
This destroys our abilty to modify and/or generate BOMA calculations for our clients. Buildings of complex geometry cannot be evaluated correctly for area and we are forced to implement, by policy, sloppy drafting. Ironically, this appears to be a set of programming intended to make up for someones sloppy drafting. Worse is that this was not an issue in 8.1.
This is an issue of such substantial importance to every architect using Revit that waiting for the next release is not acceptable and a patch should be deployed.