htaccess remove param key not working as intended - .htaccess

Question

I currently have in place a rewrite rule to remove a key on one of the sites.
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^(.*)$ /i/index.php?id=$1 [NC,L]
I now want to add this rule.
RewriteRule ^(.*)$ /stash/index.php?sid=$1 [NC,L]
However, this does not work.
HOST_NAME/stash/123 will not work.
HOST_NAME/stash?sid=123 will.
The PHP is simple....
echo $_GET['sid'];
Here is my full HTACCESS
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteCond %{HTTP_HOST} ^(www\.)?hostname\.com
RewriteRule ^(.*)$ https://www.hostname.com/$1 [R,L]
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^(.*)$ /i/index.php?id=$1 [NC,L]
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^(.*)$ /stash/index.php?sid=$1 [NC,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /results/index.php?/$1 [L]
Any help on this would be great.
UPDATE
There are four main directories on the website.
/results
/i
/stash
/account
I dont care if /results shows ?id=1$store=1...etc
I dont want /i and /stash to show that. I would want those to look like...
/i/123456789 instead of /i?id=123456789
/stash/hgdG54Hj9 instead of /stash?sid=hgdG54Hj9

Answer 1

Looks like you have nice directory based URI structures. In that case you can just have a per directory .htaccess
You may use this code in your root .htaccess:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteCond %{HTTP_HOST} ^(?:www\.)?(hostname\.com)$ [NC]
RewriteRule ^ https://www.%1%{REQUEST_URI} [R=301,L,NE]
Inside stash/.htaccess:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?id=$1 [L,QSA]
And similarly inside i/.htaccess:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?id=$1 [L,QSA]