Your hips rise but the bar stays on the floor, so the lift turns into a stiff-legged pull from a bad position.
Set up in the position your body finds at the moment the bar breaks
Film yourself, find that frame, and start there instead.
Take the slack out and feel tension in your hamstrings before pulling
If there is no tension, you have not set up yet.
Add deficit deadlifts and paused deadlifts just below the knee
Both build strength in exactly the position that is failing.
Cue "chest up, push the floor away"
Leg drive first, hips and shoulders rising together.
The hardest part of fixing a form fault is that you cannot see yourself lift. Upload a video of your deadlift and CleanerReps returns specific written corrections against a checklist built for that exact lift, usually in a couple of minutes.
Check your deadlift formTwo free analyses, no card required. $19/month after that.