Graph API (Beta) returns malformed JSON for Yammer audit log entry. Did anyone else experience the same issue?

I am using the Graph API Beta to create audit log queries and get the results. As the results started to contain a Yammer audit log entry, Graph API started to return malformed JSON. I tested it with Python SDK and Graph Explorer, both returned the same malformed JSON and because of that I am suspecting the problem relies on the backend.

{"id":"afb67a91-4a3c-b730-4fd2-a35b6f7d9d97","createdDateTime":"2024-10-25T12:03:09Z","auditLogRecordType":"Yammer","operation":"O365SyncAdminUserPromotion","organizationId":"xxxxxxx","userType":"Regular","userId":"xxxxxxx","service":"Yammer","objectId":"","userPrincipalName":"xxxxxxxxxx","clientIp":null,"administrativeUnits":[""]{"error":{"code":"UnknownError","message":"Unexpected Jsontoken. Check response for property value[135].auditData.ActorYammerUserId","innerError":{"date":"2024-11-07T11:45:38","request-id":"3c3eded4-2094-44d4-ab54-4d5bd71054ac","client-request-id":"88090cf3-c189-41ad-404d-6aa05501761e"}}}