Greengrass: TES responded with status code: 400 and body: { “Message” : “Your AWS IoT Certificate Needs to be deployed to a deployment group.” }

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It is strange to see this error in the device log /greengrass/ggc/var/log/system/localwatch/localwatch.log.

It seems this issue is related to the permission/ credentials settings. After I update the Group Role (AWS IoT -> Classic V1 -> Group -> Settings) and re-deploy the group, this issue is gone.

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