小白兔，pjiang, a question, please. Thank you!

My EB1 case was recently approved. My EB2 case has a earlier priority date. but the priority date on EB1 approval was not carried over from EB2.

My questio is : Does 485 is processed based on priority date given that the visa availability for EB1 category is current? If yes, how can I get the prioirty date corrected for the EB1 case.

Thanks a lot.