I am not in agreement with your assessment. I read the issue MC-189878 and while both issues are related to the horse movement I noted that not all horse movements are at issue. I created several pathways to help with horse travel and the horse movements are smooth over normal terrain. Only on stairways do I see this jittery rendering of the movement. AFAIK horses and ledges seems more like a freeze issue that requires some sort of input to clear.
I am not in agreement with your assessment. I read the issue MC-189878 and while both issues are related to the horse movement I noted that not all horse movements are at issue. I created several pathways to help with horse travel and the horse movements are smooth over normal terrain. Only on stairways do I see this jittery rendering of the movement. AFAIK horses and ledges seems more like a freeze issue that requires some sort of input to clear.