Hello Community,
I'm experiencing an error while moving a file in my Teams Sharepoint folder, which you can see below:

It says:
{
"status": 400,
"message": "An item with the same key has already been added. CallStack -- at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)\r\n at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)\r\n at Microsoft.SharePoint.Deployment.MetaInfoHandler.Add(MetaInfoProperty property)\r\n at Microsoft.SharePoint.Deployment.FileSerializer.HandleMetaInfo(ExportObjectManager objectManager, SPWeb parentWeb, Object metaInfoObject, SerializationInfo info, Guid listID, Guid itemID, String itemETag)\r\n at Microsoft.SharePoint.Deployment.FileSerializer.GetDataFromDataSet(Object obj, SerializationInfo info, StreamingContext context)\r\n at Microsoft.SharePoint.Deployment.DeploymentSerializationSurrogate.GetObjectData(Object obj, SerializationInfo info, StreamingContext context)\r\n at Microsoft.SharePoint.Deployment.XmlFormatter.SerializeObject(Object obj, ISerializationSurrogate surrogate, String elementName, Boolean bNeedEnvelope)\r\n at Microsoft.SharePoint.Deployment.XmlFormatter.Serialize(Stream serializationStream, Object topLevelObject)\r\n at Microsoft.SharePoint.Deployment.SPExport.SerializeObjects()\r\n at Microsoft.SharePoint.Deployment.SPExport.Run()\r\nclientRequestId: 82dfd7e6-4c96-4e82-b298-bba799c58ff8\r\nserviceRequestId: 82dfd7e6-4c96-4e82-b298-bba799c58ff8"
}
I can't figure it out why there should be in item with the same key before the file even gets copied into the folder.
A few connectors before the error occures I also move a file and this works just fine..

I hope someone can help me figure it out.
Sincerely,
Cedric