Fail to run TestTokenizeEndpoint method

[sajasbana]

Dears
I have the same issue
mentioned here
#29
#20

I followed this tutorial https://developer.mastercard.com/mdes-digital-enablement/documentation/tutorials/create-a-new-project/#6-download-client-encryption-key-sandbox

I download this github project for c#

I modified the specified fields in the doc link

but when running the test, we get all fields null, except responseId

please help