Liquid side leak

I've been kegging for a few months. Now have one keg that is pouring beer out of the middle of the liquid side quick disconnect. I can feel the qd snap down on the post. Tried another liquid qd and have the same issue. Replaced and lubed the o-ring on the top of the post, still leaks. Nothing leaks if no qd is attached and the keg holds pressure. I have used this keg before and not had this issue.

Is there such a thing as post going bad?
Any suggestions for a fix?

Thanks

The ball locks have an in post and an out post did you get them mixed up when you took it apart for cleaning?

Is the poppet inside the post stuck? did you try taking off the post and cleaning it well?

Does it leak out the OUT Connector when it's attached? Or just out the post when it's disconnected? Or out the black disconnect when it's disconnected??
Best to clear up any confusion on terms here first just in case.

Liquid Post Notice no notching on base. Notching indicates a Gas OUT post.


Gas Post, Notice the notches on the bottom ring.


Disconnect - Must be black, not white. White is gas

leaks out the OUT Connector when black QD is attached. (tried two different QDs)
Does leak 'Not' out the post when it's disconnected.
no notching on base.

has worked before with the same equipment.
have not tried cleaning the poppet yet, I will try that after i get off of work.