Items cannot be renamed using an Anvil (Realms)

On Minecraft Realms there seems to be a text-parsing issue in the Realms server code that rejects Name Tag input via the Anvil. This affects all items.

It is assumed that it is a text-parsing issue due to this coinciding with a similar but separate issue where signs go blank (on Realms servers). Please do not remove this as a "duplicate issue", it is yet to be resolved.

Steps to reproduce:

1. Pay money for Realms server.
2. Build an anvil. Find item you'd like to name (for example a Name Tag).
3. Place item in Anvil.
4. Use On-screen Keyboard to input new name for item.
5. Attempt to take the renamed item from the Anvil.

Expected result: you receive the item, you lose 1 level of experience, the item is renamed, and the Anvil receives some damage.

Actual result: item returns to first slot, you don't lose any experience, the item is not renamed, and the Anvil receives some damage.