Anyone else having issues with the Develop > Angle tool? I try to use and the handles move jerkily, then almost not at all, and then take literally seconds to move as I try to drag second handle into position. Keep locking up and I have to cmd Z, I can't even go back in Develop history as the changes won't update and process.
LR CC 2015
2009 Mac Pro with 24 GB of Ram, 2.66 GHz Quad-Core Intel Xeon, NVIDIA GeForce GT 120 512 MB
Runs smooth on my system. Do you have a lot of ajustments? Lens corrections and lot of healing done?