Trying to change my username and getting the following error :

Cannot rename "/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/_config/users/admin.yaml" to "/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/_config/users/lewisjenkins.yaml".

This is possibly because the path above is wrong. It should be:

"/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/_config/users/admin.yaml"

NOT

"/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/Users/lewisjenkins/Projects/lewisjenkins.uk/public_html/_config/users/admin.yaml"

Everything else is working fine :)