Calisthenics Unity

Okay so even though I can do some muscle ups with a resistance band, I still do lvl 11, which has negative muscle ups. Recently I fixed the Tiger bend push ups wrist/forearm pain I had by warming up extremely good and fixing form. However when I do negative muscle ups, in the transition part I experience elbow and forearm pain, kind of similar to the tiger bend push ups I had, and it's making me not finish the sets & reps. Has anyone else experienced that kind of pain and fixed it? If so, then please tell me some tips.

I've had joint pain a few times before. What I did was taking a step back to easier exercises but using the same muscles around the joint as the muscles used when it hurt. That way you can strengthen your joints, and then return to the harder exercises.