The 3 things I learned when I had my foundation repaired that shocked me: slab movement can pinch ducts
https://eduardowogx705.wordcanopy.com/posts/before-you-commit-3-things-to-know-about-foundation-repair-and-basement-waterproofing
The 3 things I learned when I had my foundation repaired that shocked me: slab movement can pinch ducts, HVAC balancing after lift is smart, and filter dust loads spike.