As far as I can find, no one else has reported this. I was checking out the nether update, when a hoglin attacked, I was only wearing a gold helmet (to stop the piglins from attacking me while I was bartering with them) eventually the hoglin broke my helmet and the piglins attacked and killed me. I respawned, like normally, I thought.
However, when I started sprint jumping back toward where I put the portal, I glitched a tiny bit, but I thought it could just be lag, then I died. No death message, no hurt sound, nothing. I tried a few variables, I walked, jumped without moving, but it seems like sprinting is the cause. I don't even know what i did to cause this, so I/you might not even be able to replicate this. I haven't tried since.
Thank you for your report!
We're actually already tracking this issue in MC-176004, so I resolved and linked this ticket as a duplicate.
However, that ticket has already been resolved as Fixed. The fix will arrive in the next version or is already included in the latest development version of the game.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki