-Well, it's mostly a small thing. The bug basically consists of using any type of soul speed level in sand or earth of souls, after that, when stepping on any other type of surface, you can notice how the speed continues to increase after leaving the sand or earth surface or sand of souls.
-Well the above is not the problem, the thing is that just as the speed of souls works outside the arena and land of souls, there are occasions in which the same speed of souls, "Does not work instantly in its corresponding blocks". They usually take about 10 or 15 seconds to activate.