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2020 Escalade fails dcryptor

I moved my remote start (Viper 4706V) and EVO-ALL from a 2017 Cadillac Escalade to a 2020 Cadilliac Escalade. I am using the THAR-GM6 T-Harness with standard installation and put in the latest firmware into the EVO-ALL. I can get the module to program and get the slow blue flash, but when I try to dcrypt the key, it fails and tells me invalid key. I dont believe anything has changed from 2017 to 2020 on the Escalade, but I could be wrong. What am I missing?

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