Managed to get it working using your config. There was a duplicate preprocess key on my rollup config. Thank you for the write up!
preprocess
Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink.
Hide child comments as well
Confirm
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Managed to get it working using your config. There was a duplicate
preprocesskey on my rollup config. Thank you for the write up!