Get event using Microsoft Graph: ErrorAccessDenied [closed] - microsoft-graph-api

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I am expecting to get all of the details of an specific successfully created event in a JSON format.
I am executing this HTTPS GET request with the URI:
https://graph.microsoft.com/v1.0/users/{user_id}/calendars/{calendar_id}/events/{event_id}
with header:
{"Authorization": "Bearer {token}"}
No request body added
{user_id} , {calendar_id} , {event_id} & {token} all valid and verified, checked multiple times on Microsoft Graph Explorer.
Following the instructions from:
https://learn.microsoft.com/en-us/graph/api/calendar-list-events?view=graph-rest-1.0&tabs=http
I'm expecting a json like this example taken from documentation:
{
"value": [
{
"originalStartTimeZone": "originalStartTimeZone-value",
"originalEndTimeZone": "originalEndTimeZone-value",
"responseStatus": {
"response": "",
"time": "datetime-value"
},
"iCalUId": "iCalUId-value",
"reminderMinutesBeforeStart": 99,
"isReminderOn": true
}
]
}
However I get the following error in the response using Postman as previously hinted:
{
"error": {
"code": "ErrorAccessDenied",
"message": "Access is denied. Check credentials and try again."
}
}
with status: 403 Forbidden
The Roles inside the claim of my token are:
User.ReadBasic.All
Chat.UpdatePolicyViolation.All
TeamsAppInstallation.ReadWriteAndConsentSelfForChat.All
ExternalItem.ReadWrite.OwnedBy
Schedule.ReadWrite.All
Calls.JoinGroupCall.All
OnlineMeetings.Read.All
Mail.ReadWrite
TeamsTab.ReadWriteForChat.All
TeamsAppInstallation.ReadForChat.All
OnlineMeetings.ReadWrite.All
User.ReadWrite.All
OnlineMeetingArtifact.Read.All
BookingsAppointment.ReadWrite.All
Calendars.Read
Mail.ReadBasic.All
ChatMember.ReadWrite.All,People.Read.All
Calls.InitiateGroupCall.All
TeamsAppInstallation.ReadWriteSelfForChat.All
MailboxSettings.Read
Calls.JoinGroupCallAsGuest.All
Bookings.Read.All
CallRecords.Read.All
Chat.ReadWrite.WhereInstalled
ChatMessage.Read.All
User.Read.All
OnlineMeetingTranscript.Read.All
Chat.Read.WhereInstalled
Schedule.Read.All
Calendars.ReadBasic.All
TeamsTab.ReadWriteSelfForChat.All
Mail.Read
Chat.Read.All
ExternalItem.Read.All
Chat.ReadBasic.WhereInstalled
Calendars.ReadWrite
Mail.Send
Chat.ReadWrite.All
MailboxSettings.ReadWrite
Mail.ReadBasic
ChatMember.ReadWrite.WhereInstalled
Chat.ReadBasic.All
Calls.AccessMedia.All
TeamsAppInstallation.ReadWriteForChat.All
ChatMember.Read.All
ChatMember.Read.WhereInstalled
Calls.Initiate.All
ExternalItem.ReadWrite.All,Chat.Create
TeamsAppInstallation.ReadWriteAndConsentForChat.All
I have also consented to all of the previous roles as Application and delegated permissions (if possible) with granted status.
I get the same error on graph explorer using the uri:
https://graph.microsoft.com/v1.0/me/events/{event_id}
I would much appreciate any assistance.
Update 1
audience in the access token
Update 2
I have already created a second app revoked and regranted all the necessary permission,execting the request, getting the same error.
Update 3
I have already created a second app granting it only the mandatory permissions,execting the request, getting the same error.