BCBS TX claims for 2012

Have any of you had issues with your BCBS claims since implementation of 5010? So far all the claims I've submitted to my local plan (Texas) are not showing up on their system. Our clearinghouse, Relay Health, shows that the claim was forwarded to the carrier (in some instances it shows they sent the file up to 4 times) but the claim cannot be located at the carrier level when status is checked.