Sideloading App fails for non-General channels in the new Teams Client

Hello, I am having an issue with side loading a custom app. Any help appreciated.

When I upload the app package zip file and click "Add to a team" then select a channel I created, I get "Something went wrong" message without any detail of the error. 

In Classic Teams app, uploading works fine with any channels. In the new Team app, it works when I try to add it to "General" channel, but not for other user-created channels.

manifest.json:

{
  "$schema": "https://developer.microsoft.com/en-us/json-schemas/teams/v1.16/MicrosoftTeams.schema.json",
  "version": "1.0.0",
  "manifestVersion": "1.16",
  "id": "731a566d-a6cf-43c2-9d77-353e2a2dbd7e",
  "packageName": "com.package.name",
  "name": {
    "short": "My custom app",
    "full": "My custom app"
  },
  "developer": {
    "name": "Custom App Developer GmbH",
    "mpnId": "",
    "websiteUrl": "https://example.com",
    "privacyUrl": "https://example.com/privacy-policy",
    "termsOfUseUrl": "https://example.com/terms"
  },
  "description": {
    "short": "Short description",
    "full": "Full description."
  },
  "icons": {
    "outline": "outline.png",
    "color": "color.png"
  },
  "accentColor": "#314749",
  "bots": [
    {
      "botId": "c57a4f3d-9dfd-477c-8225-de9c106b9e4d",
      "scopes": [
        "team"
      ],
      "commandLists": [
        {
          "commands": [
            {
              "title": "config",
              "description": "Configure the Bot"
            }
          ],
          "scopes": [
            "team"
          ]
        }
      ],
      "isNotificationOnly": false,
      "supportsCalling": false,
      "supportsVideo": false,
      "supportsFiles": false
    }
  ],
  "webApplicationInfo": {
    "id": "c57a4f3d-9dfd-477c-8225-de9c106b9e4d",
    "resource": "https://example"
  },
  "authorization": {
    "permissions": {
      "resourceSpecific": [
        {
          "type": "Application",
          "name": "ChannelMessage.Read.Group"
        }
      ]
    }
  },
  "validDomains": []
}

MacOS Desktop Teams Client (new):

From summary.txt:

2024-01-05T10:09:02.276Z Err resolverUncaughtErrorBoundary__doNotAssignToGraphQLTeam: Uncaught error in a GraphQL resolver for operation installSideLoadApp, at field selection path: installSideLoadApp

From cdl-worker-diagnostics-logs.txt:

2024-01-05T10:09:02.261Z Inf CDL-EPM: Data call uploadSideloadedAppInTeamScope_mt is completed with FORBIDDEN. CorrelationId: e73e9ec1-5199-4a5a-afe4-3badb50df74f

2024-01-05T10:09:02.261Z Inf cdlwebworker: {requestId:m-146,component:CDLGraphQLMessageHandler,requestRendererId:4b3e8f46-56d3-427f-b1e2-d239b2ea6bca,requestWindowId:fa1bc481-f577-4d6e-be67-64ad54d3ccad,operationType:mutation,operationName:installSideLoadApp,timeOfRequest:376595.5,message:Sending response to child renderer,hostRendererId:cdlwebworker}

2024-01-05T10:09:02.260Z Inf cdlwebworker: {component:JobScheduler,message:Finished executing job {resourceTags:[JobName: SideloadAppsUploadJob,AppId: 731a566d-a6cf-43c2-9d77-353e2a2dbd7e,Scope: Team],currentState:Completed} (priority 3),hostRendererId:cdlwebworker}

2024-01-05T10:09:02.260Z Err AppsPlatformWorkerResolver: installSideLoadApp failed: {"name":"TypeError","message":"Cannot read properties of undefined (reading 'id')","stack":[]} {"requestId":"m-146","requestRendererId":"4b3e8f46-56d3-427f-b1e2-d239b2ea6bca","requestWindowId":"fa1bc481-f577-4d6e-be67-64ad54d3ccad","component":"QueryProcessor","hostRendererId":"cdlwebworker","operationType":"mutation","operationName":"installSideLoadApp","timeOfRequest":376595.5}, Unknown

Teams Web App (new Teams app, google chrome):