Getting error that bundle version is not high enough (which isn't true)

A couple months ago, I got an error when attempting to deploy our app to App Store Connect (see error further below).

I used the CLI command xcrun altool --upload-app, and I was trying to upload a new version 1.0.26 build 0, when the previous uploaded version was 1.0.25 build 2 (so the new version is definitely a higher number).

I later tried to upload a version 1.0.27 build 1, and that still failed.

Note that I have an identical staging app, and I was able to go from 1.0.25 build 2 to 1.0.26 build 0 just fine there. And I have never had issues with version incrementation in the past for either our production or staging app.

What could be going wrong here?

Here are the error logs:

2026-04-30 23:18:19.430 ERROR: [ContentDelivery.Uploader.6000012404C0] The provided entity includes an attribute with a value that has already been used (-19232) The bundle version must be higher than the previously uploaded version: ‘0’. (ID: 71a9077b-807a-476c-b8a2-04cb8357bc32)

NSUnderlyingError : The provided entity includes an attribute with a value that has already been used (-19241) The bundle version must be higher than the previously uploaded version.

  status : 409
  detail : The bundle version must be higher than the previously uploaded version.

Failed to upload archive at '[MyApp].ipa'.

      source : 
         pointer : /data/attributes/cfBundleVersion
      id : 71a9077b-807a-476c-b8a2-04cb8357bc32
      code : ENTITY_ERROR.ATTRIBUTE.INVALID.DUPLICATE
      title : The provided entity includes an attribute with a value that has already been used
      meta : 
         previousBundleVersion : 0
   previousBundleVersion : 0
   iris-code : ENTITY_ERROR.ATTRIBUTE.INVALID.DUPLICATE

2026-04-30 23:18:19.431 ERROR: [altool.6000012404C0] Failed to upload package.

2026-04-30 23:18:19.431 ERROR: [altool.6000012404C0] The provided entity includes an attribute with a value that has already been used (-19232) The bundle version must be higher than the previously uploaded version: ‘0’. (ID: 71a9077b-807a-476c-b8a2-04cb8357bc32)

   NSUnderlyingError : The provided entity includes an attribute with a value that has already been used (-19241) The bundle version must be higher than the previously uploaded version.
      status : 409
      detail : The bundle version must be higher than the previously uploaded version.
      source : 
         pointer : /data/attributes/cfBundleVersion
      id : 71a9077b-807a-476c-b8a2-04cb8357bc32
      code : ENTITY_ERROR.ATTRIBUTE.INVALID.DUPLICATE
      title : The provided entity includes an attribute with a value that has already been used
      meta : 
         previousBundleVersion : 0
   previousBundleVersion : 0
   iris-code : ENTITY_ERROR.ATTRIBUTE.INVALID.DUPLICATE

I used the CLI command xcrun altool --upload-app, and I was trying to upload a new version 1.0.26 build 0

Trying to upload what? A version of IPA (.ipa), Package (.pkg) or something else? It may help if you just show an image of the Xcode screen rather than explaining the situation in words.