No Nametags while fishing, but still in drop table

When fishing with any fishing rod, periodically get a "null" catch - bubbles approach, bobber sinks, but when reeled in, no item or XP is generated.

When using a Mending I / Unbreaking-Luck of the Sea-Lure III rod, this "null catch" will register a durability hit, noticeable now that fishing is "fixed" in that the rod suddenly has a damage bar even though the mending enchantment should cause the bar to repair immediately after the catch.

Also, after multiple extended fishing trips since the inception of Bedrock, I have not caught a single nametag item, even on a "converted" windows 10 world in which I have over a stack of nametags...

Edit: Added video of a "null catch" that dings durability of a mending fishing rod but does not deliver an item/XP. Video starts with a regular catch, the affected catch, and proof of the mending on the fishing rod...