Solved by KFrank in post #4 
              
              
                Hi Frederico! 

Focusing on your word “standard,” no, a fully-connected network will 
not be able to accept a variable number of input features. 
Let’s say you have an input batch of shape [nBatch, nFeatures] 
and the first network layer is Linear (in_features, out_features). 
If nFeatures != in_fea…