I am trying it on an empty layer, with all layers and below selected. After a few minutes I get the erorr. If I juse history and backup one step, I can usually get a couple more spots done before I get the error again.
Same here. The error message pops up so often, it has come to a point that it is impossible for me to finish retouching my images using the healing tool. I'm using a mac version. This has never happened before the upgrade. Hope this bug gets fixed soon.