Unable to make imported channels isFavouriteByDefault or visible

I've managed to import channels and messages with accordance to the guid:

https://docs.microsoft.com/en-us/microsoftteams/platform/graph-api/import-messages/import-external-messages-to-teams#import-content-scope

Import works fine.

(import means creating team and channels in the migration mode)

But if we look at the imported channels, they will be "hidden" (see screenshot)

There is also github issue:

https://github.com/microsoftgraph/microsoft-graph-docs/issues/6885

which describes similar situation, but as far as I understood the author told about usual Teams/Channels, not migrated ones.

Question is

How to make imported Channels favourite by default or how to make them visible for users by default?

UPD

That's a log of how I import Channel (in the migration mode):

---------------------- REQUEST LOG -----------------------
POST  /v1.0/teams/c0b81ff7-ebda-4419-b1a4-55244d403615/channels  HTTP/1.1
HOST   : graph.microsoft.com
HEADERS:
          Accept-Encoding: gzip
            Authorization: Bearer
           Content-Length: 212
             Content-Type: application/json; charset=utf-8
BODY   :
{"displayName":"NC460 Sales","id":"","isFavoriteByDefault":true,"email":"","webUrl":"","membershipType":"standard","createdDateTime":"2021-08-05T07:42:29.518Z","@microsoft.graph.channelCreationMode":"migration"}

---------------------------------------------------------------
---------------------- RESPONSE LOG -----------------------
STATUS  : 201 Created
RECEIVED AT : 2021-12-07T15:52:42.341953+03:00
RESPONSE TIME : 2.219306112s
HEADERS:
         Content-Encoding: gzip
             Content-Type: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8
                 Location: https://teamsgraph.teams.microsoft.com/v1.0/teams('c0b81ff7-ebda-4419-b1a4-55244d403615')/channels('19:cfd343673ede4abdb5c79340a92bdf97@thread.tacv2')
BODY   :
{
   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#teams('c0b81ff7-ebda-4419-b1a4-55244d403615')/channels/$entity",
   "id": "19:cfd343673ede4abdb5c79340a92bdf97@thread.tacv2",
   "createdDateTime": null,
   "displayName": "NC460 Sales",
   "description": null,
   "isFavoriteByDefault": null,
   "email": null,
   "webUrl": null,
   "membershipType": null
}
--------------------------------------------------------------
---------------------- REQUEST LOG -----------------------
GET  /v1.0/teams('c0b81ff7-ebda-4419-b1a4-55244d403615')/channels('19:cfd343673ede4abdb5c79340a92bdf97@thread.tacv2')  HTTP/1.1
HOST   : graph.microsoft.com
HEADERS:
          Accept-Encoding: gzip
            Authorization: Bearer
BODY   :
***** NO CONTENT *****
----------------------------------------------------------------
---------------------- RESPONSE LOG -----------------------
STATUS  : 200 OK
RECEIVED AT : 2021-12-07T15:52:42.906489+03:00
RESPONSE TIME : 563.329525ms
HEADERS:
         Content-Encoding: gzip
             Content-Type: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8
BODY   :
{
   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#teams('c0b81ff7-ebda-4419-b1a4-55244d403615')/channels/$entity",
   "id": "19:cfd343673ede4abdb5c79340a92bdf97@thread.tacv2",
   "createdDateTime": "2021-08-05T07:42:29.518Z",
   "displayName": "NC460 Sales",
   "description": null,
   "isFavoriteByDefault": true,
   "email": "",
   "webUrl": "https://teams.microsoft.com/l/channel/19%3acfd343673ede4abdb5c79340a92bdf97%40thread.tacv2/NC460+Sales?groupId=c0b81ff7-ebda-4419-b1a4-55244d403615&tenantId=c0b81ff7-ebda-4419-b1a4-55244d403615",
   "membershipType": "standard"
}
---------------------------------------------------------------

In the last response i've received a newly created Channel which has `"isFavoriteByDefault": true`, but result is the same - In the Web UI and Teams app UI that channel Hidden by default.