Yes and yes! I am only about a third of the way through the book having loved the Chronicles and read them numerous times. There are various parts which seem inaccurate -
Didn't Louise have dark hair? EJH keeps referring to her 'red gold hair' in All Change
Did Lydia really join a group of actors exactly like Louise?
Simon did not have a twin who died - Wills did
The description of slippers like broad beans has definitely been used more than once in previous novels
Georgie seems to be exactly like Neville as a boy and equally the lost nature of Simon seems to be mirroring Christopher in the past books - particularly his admiration of Polly
These things are all annoying me!