From personal experience I have had issues with it in the past as it can cause the finger to feel intermittently tweaky, best thing I've found is to use a round pen or similar to massage the area to help break it up.
Could possibly be you've partially torn the pulley and it hasn't healed properly? I fully ruptured my A4 the other year and it there is a little more movement of the tendon compared to the other hand now but it took around a year for me to feel confident with that finger again.