Metadata Values(mValues)

System

I was trying to insert mValues to custom metadata but getting a SOAP unidentified Exception.

I am creating an object[] and sending that array values to the mValues by checking whether IsMultipleValue = true.
And used the ReviseAssetMetadata() to add the metadata.

I was successful in inserting just one value(mValue) and all the other fields.

Not sure where am going wrong.