Rebounding can only be added onto chestplates or leggings via enchanted book on an anvil in creative mode, unable to do this in survival mode. Rebounding cannot be found in the enchanting table for chestplates or leggings. Cannot use /enchant command to apply rebounding enchantment to chestplates or leggings, attempting to do so will return the message [armor name] cannot support that enchantment. Hovering over the rebounding enchanted book will not display correct icons (chestplates and leggings) as other apotheosis books do.

Rebounding book does not display correct icons:

Rebounding book can only be combined with compatible armor via anvil in creative mode, but not in survival mode:

Fixed in 5.7.0