S88 Mk3 keys have a rough brushy/crunchy feel?

Fonke

Hello, I bought a s88 mk3 and the keybed feels (mainly in the far left and right and in all the black keys) crunchy and like the plastic is always brushing other plastic things, its not a very comfortable/fluent sensation.

Is it normal in the new keybed or is it just a production failure? I read a reddit post about a customer having the same problem even though he exchanged his unit for others, thats why im doubtful about if it is just normal.