Door Stuck On Opening

I don't have the outside door handle installed, so I am only using the inner handle.

The latch is definitely not releasing all the way, when the door is closed onto the striker. When the door is open, I can close the latch on my finger and it releases all the way with no issues. So, this points to the latch being restricted by the striker post, and not being able to rotate back a the way to the fully open position. Finding the cause is where I'm stuck.

I'm gonna go out and get some more pics, just to clarify for everyone what I'm seeing.