Error in MS Teams - ManifestProvider GetClientSideComponents failed with HTTP status 403

[jagtapm1]

I am getting an error in MS Teams "ManifestProvider GetClientSideComponents failed with HTTP status 403"

We have created an SPFx app and have "TeamsTab", "TeamsPersonalApp" in the SupportedHosts property of the manifest.

If I add the app as a Teams tab in any of the existing teams channels. it doesn't through any error.

Few users are not seeing this issue (very few, so far we have seen only 2) and those users have the same permission as I do.

Here is the detailed error message that I could see in the Teams personal app.

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TECHNICAL DETAILS
ERROR:
ManifestProvider GetClientSideComponents failed with HTTP status 403 and correlation id

CALL STACK:
Error: ManifestProvider GetClientSideComponents failed with HTTP status 403 and correlation id
at https://res-1.cdn.office.net/files/sp-client/teams-web-part-application-assembly_en-us_.js:74:326853
at async Promise.all (index 3)

I have seen the call https://.sharepoint.com/_api/web/GetClientSideComponents getting 403 error with response as below -
{
"error": {
"code": "-2147024891, System.UnauthorizedAccessException",
"message": "Attempted to perform an unauthorized operation."
}
}