Just to confirm, I have copied the New script to Notepad++, gone to save as, Called it 'New Script' and added the .mta extension, and changed the file type to All Files.
I have pasted this into Mp3tag-data-actions see screenshot 1 and all I still get are the 3 default actions see screenshot 2. I take it there should be a fourth option.
https://i.imgur.com/Yul3bAm.png
https://i.imgur.com/qh0hoOv.png
When you say I can still create the script but do it step by step, do you mean manually type it out with all the characters and spaces exactly as you have sent it, if so where exactly do I do this?
Many thanks
***Select one file that has duplicate artwork to test this***
To create an Action Group, open the Action groups pop-up and on the right side, click
New. Name your new group and within this new pop-up window, select
New on the right side again.
1) Your first Action with be
Export cover to file. If all the duplicated covers are the exact same, then choose a filename for the cover to use (i.e. Front). No need to add the extension. You may select the other options if you feel they would be beneficial.
2) Your next new Action will be
Remove fields and here you will type "PICTURE" (w/o the quotes)
3) Finally,
Import cover from file and use the filename you typed in the first Action plus the JPG extension (i.e. Front.jpg)
Click Ok to save the Action group, then check it in the Action groups pop-up and click Apply. The artwork from this one file will be exported, the duplicates removed and then the single artwork imported back to the file.
If the results are satisfactory, run the Action group on all your files with duplicated artwork. If, by some chance, a mistake is made, you can CTRL + Z to undo the changes.