Mises said that fashism saved Europe from communists and bolshiviki - this is a problematic statement that indeed shows his sympathy to fashism: https://cosmonaut.blog/2019/12/21/anti-marxism-professor-mises-as-theorist-of-fascism-by-fedor-kapelush/

on the other hand this is what the mises institute says about it: https://mises.org/library/mises-and-fascism