UPDATE BELOW

Problem: My 03 BMW Z4 3.0L 6 speed manual was randomly shutting off / stalling / dying on me at lower speeds in variable gears. It happened about every other drive and at least once weekly until I eventually parked the car until fixed. I noticed it happens when I am in lower rpms and just coming off the gas, the car gives hesitation as if it is not getting fuel/air. It felt like misfiring but no codes present.

Previous Attempted Fixes (did not help): My fuel pump was replaced earlier in the year so I did not feel that was my issue. I checked the MAF which looked clean and blew it with electronic compressed gas. After initial research, many people had similar issues to me and replacing the Camshaft Position Sensor Intake Side solved their issue. I replaced both my Camshaft Position Sensors (Intake and Exhaust) with OEM brand but the problem persisted. Also cleaned EGR secondary valve.

UPDATE: PROBLEM SOLVED - for me my issue was a bad Crankshaft position sensor (see other video). The Camshaft position sensor intake side was a major reported issue so be sure to at least look into both. For me, My crankshaft sensor plug was covered in oil from who knows where. I found no leaks on my engine so I imagine it was there from a long time ago (I have replaced many valves and seals since buying the car).