Since a couple of years, I used the folder action successfully which is shown in the screenshot:
- A file is added to "Downloads"
- "Find Finder Items" with the shown criteria is executed
- If the filename fulfils the criteria, the file is moved to another folder. If not, the file remains in folder "Downloads"
Since I bought a new iMac, this action moves every downloaded file to the specified folder (see picture). What is wrong?