Apple notes - tag function not working for a specific tag

Hello bluntfunkontheone,

This page here can help provide some helpful info regarding tags: Use Tags and Smart Folders in Notes on your iPhone, iPad, and iPod touch - Apple Support

Is the note that the tag is trying to be added to a locked one? We ask as the page helps to note the following:

You can't lock a note that has a tag and you can't add a tag to a locked note.

If you haven't yet, it may help to try a standard restart of the device, as that can help with some odd issues that come up: Restart your iPhone - Apple Support

1. Press and hold either volume button and the side button until the power-off slider appears.

2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.

3. To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.

If nothing above helps, you may wish to try deleting the tag manually, and then re-creating it.

Cheers.

Hello!

If the steps that Eric_G1 provided don't seem to have done the trick, you'll want to reach out to Apple Support directly to look in to this further and see what other options may be available.

You can reach out to them here: Apple Support

Take care!