Minecart sounds do not show up in subtitles

How is this a duplicate if players clearly can't ride inside of hopper minecarts?

Because Minecarts don't seem to have a subtitle at all.

Exactly, so this shouldn't be considered a duplicate.

Please reopen this ticket instead of trying to merge it into a completely different, unrelated issue's ticket.

Cannot reproduce in 1.16pre1, playsound causes it to show up just fine.

can confirm in 1.19

Can confirm in 23w07a.

Can confirm in 1.20.2. Also, the subtitle appears only when the minecart as placed, as noted in the first two duplicate bug reports.

Thank you for your report!
However, this issue is Working as Intended.

Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.

Full Version History -- Snapshot Version History -- Feature Requests and Suggestions

Quick Links:
📓 Bug Tracker Guidelines -- 💬 Community Support -- 📧 Mojang Support (Technical Issues) -- 📧 Microsoft Support (Account Issues) -- 📓 Project Summary -- ✍️ Feedback and Suggestions -- 📖 Game Wiki

This is a rather confusing resolution, since it worked fine in 1.15.

Nonetheless, MC-245030 was marked as fixed just a few minutes ago, and I presume it has the same core problem: a looping entity sound’s caption is never refreshed, and so never appears in the subtitles box when it should. This seems like valid enough grounds for being looked at again.