Good evening,
We are trying to use Signal with OMEMO in an XMPP application, however we are stuck in decrypting the message payload in session cipher:
NSData *decryptedKeyData = [sessionCipher decryptCiphertext:ciphertext error:&error];
Session builder processing pre key message returns "Invalid ProtoBuf" error -

And i am getting the error as mentioned below:

Could you please help us?
Thanks in advance