Hello,
with the help of the Shortcuts App und great ideas from the community I build myself a Shortcut which helps me to rename such files, Hazel doesn‘t want to rename 
by having Shortcuts in the left and Files in the right in splitscreen mode. With this setup I can rename the files much faster, than before on my beloved Macbook. The only thing missing for the „perfekt“ workflow ist, that I manually have to get the Apps in Splizscreen. Is it possible to get Shortcuts doing this for me?
Best