Hummingbird vs lorwance

[wiperhunter2]

Yes, I understand how it works when looking at stacked fish but it still means there are a lot of fish is a relatively small area. My question is what is the deal with the one fish ID symbol I circled in the attached pic? I don't understand why they all don't have the depth on them. In my experience you either get all fish with the depth and fish ID symbol or none with the Fish ID symbol but not both.
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