Sessions randomly dropping - cannot debug why?

[splundge]

Environment

SaaS (https://sentry.io/)

What are you trying to accomplish?

Sentry seems to be randomly dropping sessions for users - but we cannot debug/find the cause? (update: screen shot below)

I can't just 'turn on debug mode' because there's no way for me to access the affected user's browser and observe what's happening.

is there some kind of what I can debug this? Is there some kind of event handler that i can hook onto if a session fails to upload?
At least this way i could send some debug info back to our servers and inspect from there.

How are you getting stuck?

no way to debug the issue

Where in the product are you?

Issues

Link

No response

DSN

No response

Version

No response

[getsantry]

Assigning to @getsentry/support for routing ⏲️

[getsantry]

Routing to @getsentry/product-owners-performance for triage ⏲️

[AbhiPrasad]

For example, over the last 24hours, we've had 4k transactions. 20 of those have been dropped.

Where are you seeing this? In the Sentry stats UI?

@splundge - I recommend reaching out to support @ sentry.io (remove spaces). They can help take a look at your account/projects and debug more in detail.

[splundge]

I'm seeing this in the sentry web console. We noticed this because a user experienced a bug a few days ago - we went to investigate - and couldn't find his session in sentry. But we checked our other analytics tracking services, and the user was DEFINITELY using the app at a certain time..... but his session was just missing.

update: i updated the image to actually show when this began. 12th of march for some reason. I've reviewed our code and deployments - no changes were made to sentry. Did something change on sentries side ?