What happened to FBA, now shipments are being marked Delivered but not received, it used to take at the most 4 days, would that be an AI or Bot Issue, any suggestions on here

Hello Amazon Forum Mods and Fellow Sellers,

I wanted to share a recent frustration I've encountered with FBA shipments. It seems that whenever one of my shipments isn't checked in alongside others delivered to the Amazon FC at the same time, it mysteriously goes missing.

This issue becomes especially frustrating when shipments take an extended time to be checked in. For instance, FBA17X41VRCN has been sitting idle for 5 weeks now.

I understand the protocol of waiting for shipments to be closed to reconcile, but I can't help but wonder: why hasn't Amazon implemented an "earlier the better" search system for FBA shipments? It seems like a simple solution to avoid these delays and discrepancies.

Greetings!

Two FBA shipments were picked up from Vista, CA, 40 days ago and are still in TRANSIT to ABQ2. Usually, our CA-AZ shipments take 4-6 days to be delivered and transfer to 'RECEIVING' status. The Amazon-partnered carrier keeps pointing fingers at Amazon.

BOL = FBA18C3TW9X9, FBA18C3YGT2L

Please help. Thank you.