Folder Actions Mac OS Mojave

I have this same problem.

If I run the folder action manually but right clicking the folder, choosing Services and clicking on the folder action, it works with no problems.

But the folder action should run as soon as something is put into the folder, and that isn't happening.

I have the same issue. To fix, I click on 'Run Service', untick the 'Enable Folder Actions' and then tick it again (i.e. the old 'turn-it-off-turn-it-on' trick). It then prompts me 'Would you like to run enabled folder actions on unprocessed files?', which I say yes to, and from then onwards, then folder actions work correctly again.

(until the next time it fails, which I *think* is after a reboot)

This seems to be a problem specific to Mojave. I'm running 10,14 and Folder Actions only work intermittently. I have built some simple workflows to filter files dropped into a folder, but they just don't work reliably and I can't work out why. Rebuilding Spotlight search doesn't work either.

For Mojave, Apple has tightened the security screws for AppleScript, and Automator events, and the solution is to add these applications to System Preferences : Security & Privacy : Privacy tab : Allow the apps below to control your computer.

I have added Automator, Script Editor, Terminal, and osascript in this panel, and the PITA control request dialogs from these applications have ended.