objectSizeUncompressed is missing.

We are seeing objectSizeUncompressed is missing for few requests.
eg. job id: 181018_71_645921d8fb62d8978fde5a2321afcab9
look for
“url”: “/marketing-ipd-tsa-widgets/3.68.55-apr.1171-b.2613/js/marketing-ipd-tsa-widgets.js”,

We are seeing this issue since yesterday.

Is it known issue?

Thanks.