 
 I had the same issue with my tripod a while back when I was shooting landscapes in windy spots. It started wobbling on uneven terrain even after I tightened everything, and adjusting the legs did not help much at first.
I tried a few things like repositioning the legs wider for better balance, but that was not enough. What finally worked was hanging my camera bag from the center hook to add weight and lower the center of gravity, which stabilized it a lot on rough ground.
I also made sure to extend the thicker leg sections first and kept the height as low as possible during windy shoots. Those adjustments fixed the problem without needing any new gear.
Hanging a bag helps but let it touch the ground so it can’t swing and act like a pendulum in the wind. Avoid raising the center column, extend the thick leg sections first, and put a leg under the lens or on the uphill side; on dirt or grass use spiked feet or press the legs in, and clean any grit from the locks. Also check the leg-angle locks and the pivot bolts at the apex for play. To cut vibrations, use a 2‑second timer or remote, electronic front curtain if available, and turn off stabilization when the camera is locked down.
 
  
  
  
  
 