Cannot see any events in Event Hub Data Explorer

Looks like you’ve set things up right, but there might be a few small things causing the issue. Here’s what I’d check:

Consumer Group Conflicts
Using $Default as your consumer group could be the problem. If Fabric Event Stream is reading from it, it might’ve already committed the offsets. Just create a new consumer group and use that in Data Explorer. Keeps things clean and avoids conflicts.

Event Position
You’re using the oldest position, which should work, but sometimes flipping it to the newest position or setting a custom position helps. Could be something with the offsets not aligning.

Partitions
Selecting “All partition IDs” is fine, but if nothing shows up, try targeting a single partition directly. If you know where your events are landing, this can give you better insights.

Retention Window
Double-check your Event Hub’s retention period. If the events you sent are older than the configured time, they’re gone, and nothing will show up.

Permissions
Even though you’re using an admin account, make sure you’ve got the Data Receiver role on the Event Hub. Sometimes small permission gaps cause annoying issues.

Advanced Settings
Take a look at any filters or options under advanced properties in Data Explorer. Sometimes there’s a subtle setting blocking events from showing up.

If none of this works, try using the Azure CLI or an SDK (Python, .NET, whatever you’re comfortable with) to pull the events directly and confirm they’re actually there. If the data is in Fabric but not showing in Data Explorer, it’s probably a conflict or setup issue.