I had a pinching feling in the front of my hip for a while, stretching helped for me.
Keep persisting with the stretching but if you have any pain dont try to just push through it.
like the guy above said, try reducing your ROM in the mean time but I would suggest experimenting with the width of your stance and angle of your feet.
When I squat I feel a lot of tightness in the front of my hips. I’ve been foam rolling and stretching like crazy, and my hip flexor flexibility has improved, but this hasn’t helped.
More importantly, it doesn’t feel like a muscle that’s being stretched, it feels like something is going on in the joint.