I had a kitten like this !!
The other 3 took to solid foods easliy but Lilly wouldnt have none of it
I was lucky as all kittens were staying with mum so is didnt matter .....
Just give this little one some more time, Mum will start to walk away soon when she wants feeding, carry on with trying the solid foods too.
She is still very young and i think this is one reason why breeders dont rehome till kittens are 12/13wks old