Realms - Enchanting an item always gives the same enchant

When I enchant a sword to level 30 I get Smite IV unbreaking II, and I would expect a different enchant each time.

Instead, I always receive the same enchant consecutively after multiple enchanting with different swords.

Steps to Reproduce:
1. Enter a realm and enchant a diamond sword. (Or any other weapon/tool)
2. Enchant another diamond sword at the same level as the previous diamond sword.
3. If you keep enchanting more diamond swords with the same level, you will always receive the same exact enchants as the previous diamond sword.

Note: This bug only occurs on realms and any device from what I know. l also do not want to post screenshots of me wasting precious levels and materials. 😛