When trying to connect a custom multiselect dropdown field to the Fix version field via automation, I receive an error: 
The Fix versions and the multiselect dropdown fields have the same values and are apart of the same project which is odd. I was able to automate these fields together when using a single field but needed to change the automation code to account for multi selections.
Here is a screenshot of my automation set up:

Any idea what the issue might be here? Thanks for any help in advance! 🙏🏼