I have LR4 on imac (yosemite), this issue has been present for a while but it is much worse now that I have installed a new wacom tablet.
While using the brushes in erase mode, after few strokes, the image will reload and reset to the original work.
The brush will switch automatically from erase to brush A and all the previous erasing will result undone.
Does anyone have ever experienced something like this? I don't know how to solve it.
Retrieving data ...