Think i have found the issue there is a line in config.txt
Gordon, what is the above for?
From stable to the above build with 15.0, using samba update method works, all you need to do to get LED's working is remove the above line from the config.txt
+On Raspberry Pi, Device Tree usage is controlled from /boot/config.txt. By
+default, the Raspberry Pi kernel boots with device tree enabled. You can
+completely disable DT usage (for now) by adding:
Seems that entry is being added by OE build system