Conflict with Astra theme sticky header

How do you conclude that this is caused by ASE?

Which modules do you have active in ASE?

Astra tested it.

I double checked it and it was the Disable Smaller Components option

Was it the Disable jQuery Migrate module? If so, you can simply uncheck it in ASE?

I disabled the whole option.
I did not check.

OK. It sounds like one of the disabled components is causing the issue in Astra theme. So, not a problem with ASE itself, but more about understanding which components not to disable to prevent the issue. i.e. Astra theme depends on a certain component to make the sticky header work properly. So, we simply do not disable that component.

If you can do another round of testing and figure out which component that is, it will help other ASE users. Marking this resolved.