Strange htaccess url rewrite behavior – Apache

I want to rewrite example.com/login into example.com/login.php
this used to work on my old server as I was using this rule in the .htaccess file:

RewriteRule ^login$ login.php [L]

when I migrated to a new server, this specific rule has stopped from working, but if I change login to loginx for example

RewriteRule ^loginx$ login.php [L]

the rule works and I see the login page when I go to example.com/loginx

also, if I change the filename, the rule starts to work too

RewriteRule ^login$ loginx.php [L]

It looks like if the rule and the file has the same name (login in this case) the rule doesn’t work for a reason I can’t understand, does anybody knows why this happens and how to deal with it?

Here’s the full .htaccess file:

RewriteEngine On
RewriteBase /
RewriteRule ^login$ login.php [L]
RewriteRule ^users$ users.php [L]
RewriteRule ^profile$ me.php [L]

the problem happens with the users too (because the file has the name as the URL)
the profile rule works correctly.