AOS approval for one Derivative, not the other??

[jmn1012 25]

Hi all,

My own employment based (EB1-C) and one of my derivative childrens AOS was approved this last week. My other derivative child was not approved and that case has been updated to show that RFE (request for additional evidence) has been issued.

Only thought on this is that the biometrics were taken twice and both time the FBI failed to read the prints, as told by a tier 2 officer and the case never updated past fingerprint fee received.

Does anyone have any idea why an RFE would be sent rather than a simple biometrics appointment?? Is there another procedure 

Tks

[jmn1012 25]

I will answer this myself, in case it helps others.

Due to the fingerprints not being able to the read by the FBI twice USCIS will sometimes take a police criminal record check covering the last ten year of residency.

In my case I need an ACRO from the uk for 9 years and 10 months and 2 months from the US state we are now in.

These are sent back to USCIS to review and make a final judgement on the case.