Files suddenly not matching rules

I have a simple rule where when I insert an SD card Hazel checks to see if the file was created today and if has an "raf" extension (Fuji RAW file). If so, it copies it to a folder on my local hard drive. I have been using this rule for months now and never had a problem once I got it set up. Suddenly, today it was not copying any of my files so I checked for updates and it installed one. However, the files were still not copying and when I got to preview the rule, Hazel says the "Extension is raf" rule "does not match". I checked the logs and that same rule successfully matched the files on my SD card on December 1st. Has something changed?