I am having the same issue, the process takes more than 60 minutes for some files and the upload URL has expired when de workitem ends, which results is upload failed. I believe I cannot change the uploadURL to the workItem which is currently running to avoid the expiration of it. The answer from @Emma Zhu requires as well the signed URL where minutesExpiration can be set to 60 minutes max. So, it didn't help. I hope someone knows how to achieve it