MuFan,
It looks like we will need to do some additional investigation to figure exactly what is going on here. Please email the following to AzCommunity@microsoft.com to my attention and we'll get back to you promptly:
• Your Subscription ID (this can be found by searching for "Subscriptions" in the portal)
• A link to this thread so we can validate and expedite the request
• A brief, 2-3 sentence summary of your issue
• The person you were working with (Samara Soucy)
That would look something like this:
I was working with Samara on an Application Insights issue where I encountered data that was missing for up to 90 minutes at a time.
Forum Link:
https://social.msdn.microsoft.com/Forums/en-US/
Subscription ID:
aaaaaa-bbbb-cccc-1111-222222222222