Are the two occurrences the same? The first failure you mention is an apply-failed. The second failure is upload-failed. Is the upload-failure consistent/reproducible with the new load? Do you have logs from the second failure?
Are the two occurrences the same? The first failure you mention is an apply-failed. The second failure is upload-failed. Is the upload-failure consistent/ reproducible with the new load? Do you have logs from the second failure?