dragon rig - issues

So after many problems I realised that Inverse kinematics wont work properly on this rig. Then i ve done normal rigging manually and attached verticle groups to bones - weights doesnt work - All thing looks good now but there are 2 big problems I see now. The front leg is really weird when it comes to moving her bone. And because the left and right side are all the same, i was wondering how is that even possible. The back leg has the same issue. And iam pretty sure that no verticles are in different groups than they should be in.