NGINX Subdomains Redirecting to Main - .htaccess

Question

I am pretty new to NGINX and have a background with Apache. My company is deploying a server that hosts multiple websites. Specifically libretime in one webroot, and our corporate website in the default webroot.
I am having a heck of a time trying to configure the subdomain. I have ruled out cloudflare and I have the DNS set correctly but it just wont go.
I have created two configs in sites-available and simlinked them. Each going to the respective webroot. I also have configured both the main domain and subdomain with SSL.
Whenever I try and go to the subdomain "https://radio.example.com" it gets redirected to "https://example.com" and never allows me to go to the subdomain.
Please see the below config files, any help would be appreciated as im getting conflicting info.
server {
listen 443 ssl default_server;
listen 80 default_server;
listen [::]:443 ssl;
ssl_certificate /etc/ssl/certs/example.com.pem;
ssl_certificate_key /etc/ssl/private/example.com.key;
server_name www.example.com example.com;
server_name_in_redirect on;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
root /var/www/html/example.com;
if ($scheme = http) {
return 301 https://$server_name$request_uri;
}
index index.php index.html index.htm;
client_max_body_size 512M;
client_body_timeout 300s;
location ~ \.php$ {
fastcgi_buffers 64 4K;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
# try_files $uri =404;
try_files $fastcgi_script_name =404;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
set $path_info $fastcgi_path_info;
fastcgi_param PATH_INFO $path_info;
include fastcgi_params;
fastcgi_index index.php;
fastcgi_pass unix:/run/php/php7.4-fpm.sock;
}
location / {
try_files $uri $uri/ /index.php$is_args$args;
}
}
Second Subdomain
server {
listen 80;
listen 443 ssl;
listen [::]:443 ssl;
ssl_certificate /etc/ssl/certs/example.com.pem;
ssl_certificate_key /etc/ssl/private/example.com.key;
server_name radio.example.com;
return 301 $scheme://radio.example.com$request_uri;
server_name_in_redirect on;
access_log /var/log/nginx/libretime.access.log;
error_log /var/log/nginx/libretime.error.log;
root /usr/share/libretime/legacy/public;
index index.php index.html index.htm;
client_max_body_size 512M;
client_body_timeout 300s;
location ~ \.php$ {
fastcgi_buffers 64 4K;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
# try_files $uri =404;
try_files $fastcgi_script_name =404;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
set $path_info $fastcgi_path_info;
fastcgi_param PATH_INFO $path_info;
include fastcgi_params;
fastcgi_index index.php;
fastcgi_pass unix:/run/libretime-legacy.sock;
}
location / {
try_files $uri $uri/ /index.php$is_args$args;
}
location ~ ^/api/(v2|browser) {
include proxy_params;
proxy_redirect off;
proxy_pass http://unix:/run/libretime-api.sock;
}
}
Thanks!