2 sorts of grinding noise

I have a Tacx Neo 10510 and had it since September 2018

I have the same problems with noise as is these videos

This sound appeared recently - 



This sound has been there since i got it -



I took it apart and this is what i found, scratches on the magnets, shaft and bearing seems to get hot with brown/blacks marks on them, bearing seems ok - i wonder how to make these noises go away