First of all: thanks for all the helpful threads and sample code that I was able to download from this forum.
I have been putting together a marionette that pulls book symbols from a folder and places the symbols on a shelf. The script randomizes the books and allows for leaning books with some presets to choose from (random angles, leaning incrementally, all upright etc. You get the idea :-) ). I have now begun to introduce stacks as well. It is all going very well and I am enjoying working with marionette.
Until I try to wrap my (fairly large) marionette. Sometimes, VWX will let me wrap everything and I get no errors. Sometimes, I get an error when I try to wrap. I then unwrap and the errors continue. Wrapping the same script on a duplicated layer with no changes made may or may not work. If it works, it will continue to work without a hitch.
I have spent hours trying to debug errors of the type "Attribute Error: type object 'Move_Right_And_Up' has no attribute 'Params'. These always point to wrappers within the marionette network but I can see nothing wrong with them. There were some threads dealing with similar errors but none of the solutions mentioned seem to work in my case so, I guess it's time to ask for help.
I attach a rendered scene with version 0.5 of the books (no stacks yet) and a dropbox link to the latest version of the file in case anyone wants to have a look.
Each design layer contains exactly the same marionette with some of them throwing errors, and others working fine. I have labeled the design layers so it is easy to see which is which:
https://www.dropbox.com/s/p0zyvf9kwxz10ao/Books (Stable%2C with Flat books v. 0.9).vwx?dl=0