Blender constantly keeps crashing on moving frames in the dopesheet

I use blender2.79b for making 2d greasepencil animations on a windows10 64bit machine.

Blender is contantly crashing on my machine .However,it only crashes when trying to move keyframes in the dopesheet using grab(G) or box select(shift+B).I did find a reference to the problem here developer.blender.org/T57491 but couldn’t find any solution.Since,this is a major problem ,its impossible that this has not been resolved .Please let me know of any possible solutions.