@r5gtt is an angel sent from heaven!!! I cannot thank him enough. A real nice fellow to boot!
Initial scans showed no signal malfunction in gear selector if I remember correctly. After these were cleared, fault 02413 - Switch for selector Lever Position P Lock (F319) 008 - implausible signal - intermittent came up.
He then took off the gear gaiter and pressed in the yellow plastic clip, which unlocked the gear stick. No more flashing lights and the code cleared and did not come back. Took it for a drive and all is well again
Seems like it just got stuck? Will keep an eye on it but thanks again
@r5gtt