Airflow 3 UI caching issues

[atul-astronomer]

Apache Airflow version

3.1.0b2

If "Other Airflow 2 version" selected, which one?

No response

What happened?

We are seeing many issues on AF3 UI, creating this 1 issue to log all those

1. Intermittent issue sometimes tasks are not showing up on grid but after refresh it comes up.

Screen.Recording.2025-09-16.at.4.56.32.PM.mov

What you think should happen instead?

No response

How to reproduce

Create multiple dagruns and intermittently notice tasks are not loaded on grid and comes up after refresh.

Operating System

Linux

Versions of Apache Airflow Providers

No response

Deployment

Other

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[pierrejeambrun]

That's happening when you trigger dag runs manually?

Or just on a basic refresh, some tasks would be missing?

Is that specific to a certain type of dags? (mapped)

[vatsrahul1001]

Yeah, sometimes when we trigger dag manually, however, it's very intermittent

[phanikumv]

Given that the issue is intermittent, would you consider downgrading its severity @vatsrahul1001 ?

[vatsrahul1001]

I will test one more time today, and if not able to replicate, I will downgrade sev.

[vatsrahul1001]

Changing to medium priority