shaneharman:
Yes, I am seeing the same behavior in AC20, when rotating the Circle clock-wise or counter clock-wise, the Circle ends up rotated the opposite direction when done, even though the on-screen feedback shows it being rotated in the correct direction. One work-around is to mirror the Circle after rotation until this gets fixed.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum. This is particularly helpful when reporting bugs.
David