Found a workaround.
Commented out the below from the mywebsite.conf file in /etc/nginx/sites-enabled
` # Rewrite for versioned CSS+JS via filemtime
# location ~* ^.+\.(css|js)$ {
# rewrite ^(.+)\.(\d+)\.(css|js)$ $1.$3 last;
# expires 31536000s;
# access_log off;
# log_not_found off;
# add_header Pragma public;
# add_header Cache-Control “max-age=31536000, public”;
# }
`
Probably need to look at the nginx config long term.