For me, the problem has surfaced on virtually every Android device I can recall testing, ranging from 4 through 11 with a wide range of processors and memory specifications. Also with every version of Studio I have tried. A more feasible question might be: What device(s) does it not occur on?
For the last question, it has been intermittent and varies in duration. The stutter occurs at pretty much every sound playback instance, but the severity varies. It may be a slight 10-20ms pause or it may be 100-250ms (with the same sound effect on the same device). Sometimes a severe stutter occurs on the first sound play, sometimes on the 5th or 10th, sometimes it remains short. But a hesitation always seems to occur consistently whether short or long.