Whenever I type the letter "y" with a formatting code when naming an item, it changes the whole name including the "§" symbols to #'s. This does not happen when the "y" symbol does not have a formatting code attached to it.

Steps to Reproduce:

1. Place an anvil
2. Interact with the anvil
3. Name the item something with the letter "y" in it
4. Format the letter "y"
5. Type the rest of the name
6. Remove the output item
7. The item name including the section sign (§) is all hashtags

Notes:

The image attachments are examples of what happens and show that it is not limited to a specific word.