Hi Kaporitofrontino,
The object that should be moved from one to the other hand is as in your initial post buried under many others, and in a direct hierarchy.
You have used:
29 Xpresso Tags (well, the first one was not really useful, empty nodes etc, I have no idea what was their use in the first place.)
20 Pose Morph Tags
83 Constrains Tags
18 IK Tags, and a total of
91 Character Constrains
Certainly nothing that I like to list in a hierarchically analysis manually—just to check if it could work within a multi parenting hierarchy. You might understand perhaps. However, the first tags that I believe are in charge for that, contain all the “Expression—+25” Level. None of these is checked as “Camera Dependent”, which might answer perhaps what you miss.
Your animation goes up to frame 35. So I made a preview rendering. If I get this correctly, the hands stop moving (fingers etc) at frame 11 and start moving at 22 (?) again. During that time, I can’t see any delay in the animation.
Again, the preview editor might not work in the way as the final rendering does, for many reasons of course. To keep an constant update while on is working the conditions are different to the rendering requirements.
The Object should stand alone and have the higher possible priority, perhaps you test even Generator +499 just for fun to get some ideas how it might work.
Backwards scrubbing, as in your initial post might not be possible, especially if the hierarchy is not clean, as some information is not delivered to the frame needed, so it is used what was produced before, and is not updated in the “memory”.
My suggestion, as before: Keep things out of the main hierarchy, if it has to be constrained from one to another object.
If nothing helps and the amount of data is to large in a given environment, perhaps you have to bake some parts, to take these out of the active change and into the keyframes. Keyframes have no delay.
You might like to check with the support, if they have a better idea to get a clear list of hierarchies inside of a scene. I’m not aware if there is a method (plug in) currently available that creates a list-view of such.
All the best
Sassi