Awajuk

My 05 accord has had some lock problems. I was only able open with key. And twice, the key wouldn't work either. I replaced the actuator, and reprogrammed the remote. Everything worked great for a while. Now today, I used the remote, all doors unlocked, but the drivers only unlocked half way and the key won't turn. Fortunately, since I fixed the remote, I was able to open the door from the inside of the car.

do I just need a new tumbler?

If so, can I get a replacement tumbler relayed to use my existing key?