From my understanding, USCIS suffered a data corruption that affected a number of DACA renewals. USCIS has not publicly disclosed the extent of the corruption, but people here have received confirmation from L2 officers that such loss did occur. I think what VJB2 is hinting at is that Ryker's case is one of those affected, which means that his/her biometrics data was lost. We don't know why USCIS has not contacted these applicants since it seems unlikely that they will be able to retrieve the corrupted data.