Dicom Listener error when deploying

[sdpillar]

I am using Mirth Connect version 3.1.1 and have a problem in creating a channel with a DICOM Listener connector. When deploying it the following error is raised:

class "org.dcm4che2.tool.dcmrcv.MirthDcmRcv"'s signer information does not match signer information of other classes in the same package

Looking through the forum it appears this was an issue in version 2.1.1 but was resolved in later versions.

Is it a problem again in 3.1.1?

I can successfully create and deploy a dicom listener in 3.5.1

Thanks