Can you check the Color Mode of your document? It should be in RGBA mode(I've tested both scripts in 1.2.16.3 and seems like everything works on macOS)
I just recheck again and both the lite and normal version of the script works as intended now. I am not sure why it didn't work the first time when I tried to run the script though.
Anyway, thank you for such an amazing plugin. :)
Glad to hear :)
Hope you'll find this script useful!
