Yup, I think it happened with me when I extended a stretch a bit too far. I think martial artists are in a small quandary, since we need to stretch to get fluid and good height in our moves, we need to stretch farther than normal for others, but have to be cautious that our muscles that have been weakened in the procedure are not compromised.
I am at almost a year on one, and at 9 months on the other. I have gotten some issues from stretching and weights, a real groin pull on a leg press machine at about 4 months, a muscle pull on the back of the leg from extending my stride.
I am now doing good stretches, but not like before. I think I will reach my regular extension, but I expect it will take another year or so. I am doing all punches now, and starting on mid level roundhouse kicks and crescent kicks, will probably try slow motion side kicks soon, since my extension seems to be able to support that.