Timestramps in nested objects

I would be very surprised if that would be the case. Your sample document DOES NOT have a field named SR_NOTES. So you either redacted the query or the sample document. In this case, we really cannot help you because we have no way to know what part of the information you share is correct and which one is wrongly redacted.

Please read Formatting code and log snippets in posts so that you documents and code can be used without further editing.