Shell scripts failing to run in 3.1.5

After installing the latest Hazel update, I'm getting shell script errors for scripts that ran fine immediately prior to the upgrade. It's using the embedded shell with "/usr/bin/python".

Here's what I've tried:

1. logging in again
2. Turning Hazel off/on
3. Disable action on folder
4. re-add folder
5. Modify script and close action
6. Rebuilt Spotlight Index (it's voodoo)

I'm also seeing errors like this with script actions:

"Attempted to run worker on undeployed folder: blah/blah/folder/name"

Again, nothing was changed other than updating Hazel.

What version did you upgrade from?

Also, enable debug mode (see the sticky article above) and post log messages pertaining to the script.