Replace the S-cleat if it will not grip or seat the duct edge correctly. A damaged slip can make the joint loose even if the drive side looks finished.
Straighten, trim, deburr, or replace the damaged piece
Test fit before driving
Ask foreman
In Rectangular Duct Assembly: S-and-Drive, I’m looking at: What do I do when the S-cleat is bent open or crushed? What should I verify before I cut, drill, seal, cover, move, or install?
Do not
Do not force damaged connector metal and then hide it with sealant.