Different share links (embeds)?

Hello,

when you click on the share icon you get a link to a post, like this one:

https://community.invisionpower.com/topic/416166-34-features-missing-in-40/?do=findComment&comment=2559628

And the embed result is this:

But when you follow the link it redirects:

https://community.invisionpower.com/topic/416166-34-features-missing-in-40/?page=3#comment-2559628

And the embed does not work the same way:

Why is the second link not working like the first one?