The ratchet key is a crucial piece of information when trying to debug a decryption failure of a Olm Session.
The ratchet key and chain index, which are found inside a Olm message, form a pair which uniquely identifies the individual message key that should be used to decrypt the message.
To inspect why a decryption failure occurs it's useful to have the ratchet key and chain index pair, this allows us to double check if the correct chain is part of the Session.
The ratchet key is a crucial piece of information when trying to debug a decryption failure of a Olm Session.
The ratchet key and chain index, which are found inside a Olm message, form a pair which uniquely identifies the individual message key that should be used to decrypt the message.
To inspect why a decryption failure occurs it's useful to have the ratchet key and chain index pair, this allows us to double check if the correct chain is part of the Session.