Elite 8200 SFF Bios password not stored - FW 02.29 Rev.A

Hello

We have a number of HP Compaq 8200 Elite SFF PC's. After updating the BIOS to version 02.29 Rev.A, the BIOS Setup password cannot be set. You can set it in the BIOS, it appears to be fine, but after a reboot the password is no longer in affect, going in to setup no longer requires the password. A reset to Factory defaults has no effect, a CMOS Reset has also had no affect. We also have a number of HP Compaq 6200 Pro SFF PC's which appear to use the same version of BIOS FW (0.229) which apply the setup password as expected.

Any ideas what is going on?

Thank you