Hi,
I downloaded sample project form https://github.com/EsotericSoftware/spi ... /spine-xna. I just wanted to test how it works in XNA and I found a little problem with RotBone.Rotation while I play an animation.

Screenshots and video below show the problem.

1. This is how walk animation should looks like.
   

   Image removed due to the lack of support for HTTPS. | Show Anyway

2. Here is wrong walk animation.
   

   Image removed due to the lack of support for HTTPS. | Show Anyway

3. Another example of wrong walk animation.
   

   Image removed due to the lack of support for HTTPS. | Show Anyway

Youtube video:
http://youtu.be/MNyCdmQ2xA4

I use a trial version of Spine so I can't check other Timelines.
In Update function I added a few lines of code:

     //***********************************************
            if(st.IsKeyDown(Keys.R))
            {
                if (state.Animation.Name != "jump")
                {
                    state.SetAnimation("jump", true);               

                }
            }

        if (st.IsKeyDown(Keys.W))
        {
            if (state.Animation.Name != "walk")
            {
                state.SetAnimation("walk", true);                
            }
        }

        // here RotBone.Rotation is OK
        if (st.IsKeyDown(Keys.Space))
        {
            if (state.Animation.Name != "jump")
            {
                state.SetAnimation("jump", false);
                state.AddAnimation("walk", true);               
            }
        }
        //**********************************************

I've tested it with stateData.SetMix "on" and "off" but the problem still exists.
Maybe I do something wrong, but I think the problem is connected with spine-runtimes.

I found the reason of problem which I described in my previous post. This problem can occurs in any animation that doesn't save all parameters.
Picture below shows "jump" animation:

Image removed due to the lack of support for HTTPS. | Show Anyway

There is rot.Rotate parameter saved in this animation. However "walk" animation doesn't has this parameter.
That's why when "jump" animation switch to "walk" animation, "walk" gets random rotation parameter from previous "jump" animation.

It can be repaired by forcing to save all parameters (rotation, scale, translation).
It's also possible to add missing timelines.

In "SkeletonJson.cs" I added a few lines of code to repair missing RotateTimeline.

//******
private Dictionary<BoneData, Dictionary<Timeline, object>> BoneDataLib = newDictionary<BoneData,Dictionary<Timeline, object>>();
//******

 //******
            // BoneDataLib = new Dictionary<BoneData, Dictionary<Timeline, object>>();
            BoneDataLib.Clear();
            for (int x = 0; x < skeletonData.Bones.Count; x++)
            {
                BoneData b = skeletonData.Bones[x];
                if (BoneDataLib.ContainsKey(b) == false)
                {
                    BoneDataLib.Add(b, new Dictionary<Timeline, object>());
                }
            }
 //******          



//******
                            BoneData OrginalBone = skeletonData.Bones[boneIndex];
                            BoneDataLib[OrginalBone].Add(timeline, timeline);
//******


//******
            foreach (KeyValuePair<BoneData, Dictionary<Timeline, object>> val in BoneDataLib)
            {
               

            Type t = typeof(RotateTimeline);

            bool ValNotExist = true;
            foreach (KeyValuePair<Timeline, object> lin in val.Value)
            {
                if (lin.Value.GetType() == t) { ValNotExist = false;}
            }

            if (ValNotExist)
            {
                RotateTimeline tlrot = new RotateTimeline(2);
                tlrot.SetLinear(0);
                tlrot.SetFrame(0, 0, val.Key.Rotation);
                tlrot.SetFrame(1, duration, val.Key.Rotation);
                tlrot.BoneIndex = skeletonData.FindBoneIndex(val.Key.Name);
                timelines.Add(tlrot);
            }
        }
//******            

Below I put link to modified file "SkeletonJson.cs".
http://center.nstrefa.pl/spine/SkeletonJson.cs