Please refer to https://xdebug.org/support.php#remote for information on how to submit bugs related to remote debugging. This URL explains which information I require to debug this.

I added logs, here is the script:
<?php
class A{}
$b=A::__set_state();
var_dump($b);

break points were added along the code.

Thanks for that!

The logs don't show the setting of any breakpoints, or stepping through code at all. Do you actually step through the code with your IDE?

When I run the code without any extensions loaded, all I am getting is the following:

Fatal error: Call to undefined method A::__set_state() in - on line 3

Which makes sense, as the A class does not have __set_state() defined.

The logs do however show that you are using PHP version 5.5.0-dev, which sounds like a pre-release version of something.

Ping?

Can't reproduce, and the requested information was not supplied. Please reopen this issue if the problem persists.