Rev F of the AD9914 datasheet says :
When CFR1.BIT9 = 0, CFR1.BIT8 = 1 AD9914 in manual OSK mode
When CFR1.BIT9 = 1, CFR1.BIT8 = 1 AD9914 in automatic OSK mode
A customer was testing AD9914 and found only setting both bit=1 makes AD9914 work at manual mode.
Could you please double check this in your lab? Thanks