Hi,
In case you still have this issue, can you try with the Neural Morph Model as well?
Does that give a similar error?
UE 5.4 had some issue regarding Pytorch, which caused the error you had in 5.4.
It also showed you didn’t set the hidden layer dimensions. We improved that in 5.5 and automatically fill those in. That’s likely why 5.5 gets a bit further in the code.
But the error in 5.5 is a bit weird. Did you provide any input bones?
You most likely want to use the Neural Morph Model as well if testing just a cylinder.
In 5.6 we are also deprecating the Nearest Neighbor Model as the UX is bad, and we rewrite a new plugin that is inherited from the Neural Morph Model and is much cleaner.