Channel config not honored

The following three snippets sum up my problem. I have specified “channel” as “preview” in my eas.json, run a build, but it appears as “channel:none” in the list of builds on

Run command:

eas build --platform ios --profile preview


    "preview": {
      "distribution": "internal",
      "channel": "preview"


ID               072952ce-d10e-4d40-85d7-37f40cc1b4ac
Platform         iOS
Status           finished
Distribution     internal
Release Channel  default
SDK Version      48.0.0
Runtime Version  1.0.0
Version          1.0.0
Build number     1
Commit           3623fe2709a5cdf1688b8a8d11c9950e06934098