Door is "iffy" sometimes doesnt open from both inside and out

[Naz24]

My passenger rear door has an odd problem

lets assume its locked, (you know how most people are in these BMWs) they pull the handle, and push (door unlocks, but doesnt open--ok), but then on the second pull on the lever, the door is stuck from inside and out. If i unlock and lock the car holding the door handle open from the inside, it fixes it. I'm planning on opening my door panel this weekend, but i'm not sure what to look for. Btw, this only happens if somebody pushes on the door while its locked.. after its fixed, if you try to open the door like a normal human being (pull to unlock, and then pull again to push the door open) it will work. This only breaks when the door is locked and someone tries to push it on the first pull on the lever..

Any ideas? i cant imagine it being the door handle carrier, could it be getting disconnected somehow?