EDIINT AS2processederror authenticationfailed

We are getting “processed/error: authentication-failed” error. Client certificates are loaded into TN. Looks like, we cannot verify signature.

Any ideas?
Thank you

What version of the EDIINT package are you running? Are you currently configured to use the RC2 algorithm?

EDIINT package version is 4.6.

Algorithm is TripleDES