Extruder not feeding during print, but purge works fine

[Bikeracer2020]

Possibilities......

Filament route to extruder not free enough.
Filament trapped under other windings on reel.
Teeth on extruder gunged up with filament particles.

[Stargazed]

The feeder motor is not trying to move during the print but when I purge it works 100% so there has to be something else

[Bikeracer2020]

This is a guess......

Sounds like the G-code extrude command 'e' is missing in the start G-code.

When you reinstalled Cura did you copy the original start G-Code from whatever slicer came with the printer?

It'll be in the printer settings.

As I said...just a guess