Quantizing....only scrambles tracks

Hi All – Cubase 7.0.7. Trying to quantize and tends to only scramble tracks timing. New box to me so I cannot confirm it has ever worked but fairly certain it has as it came out of a productive studio. Running Win 10. Tried adjusting hit points, threshold, grouping tracks in a folder using a single track to track off of, tried just one track, then two, etc. I also had a guy who uses Cubase come over to see if I was doing anything incorrectly. He tried it as well while using his proven cheat-sheet and got the same results. Tried following Youtube vids. Thoughts? Known software issue? I more convinced it’s user error but have tried numerous variations and approach.

Thx all!!