Move streak not accurate

The first (and simplest) thing to try if something isn’t working right is to restart your Apple Watch and its paired iPhone. If necessary (device not responding), try a forced restart. Both methods can be found here:

How to restart your Apple Watch - Apple Support

Restart your iPhone - Apple Support

If that doesn't help, the next steps would be to unpair and pair your watch again and restore from the backup just created. This should result in no loss of data. It deletes all temp and corrupted files and re-indexes the file system.

Unpair and erase your Apple Watch - Apple Support

Set up your Apple Watch - Apple Support

Make sure that "Health" is still turned on in iPhone Settings, [your name], iCloud, (show all)

After that do as javaliga recommended.

Wait a few days. If the streak is still lost contact Apple Support but I don't think it can be restored.

As of today (13 Apr 2023) after latest update 9.4 my move goal came up and said I had a new streak of 36 days even though it then went in to say it was 2692 days, which is correct as started on 29 Nov 2015 (I have closed all 3 rings every day since that date).