Hi everyone,
I am now working on implementing new tracking requirement on one site via Launch.
Our rule is triggered by custom event and sent as s.tl().
However, it shows the error message in console - Failed to execute "Send beacon". (see below)

I have searched several previous discussion.
--> some say it can be caused by not updated AA extension--> it is updated.
--> some say it can be caused by not updated Experience Cloud ID extension-->it's updated.
At the same time, the rule "Migrated from DTM: Adobe Analytics - Send Beacon on every page" is fired and sent the beacon without the same error message.

But the tricky thing is that I saw no network request, either.

I am thinking whether it is caused by an outdated plugin? We are still using the same setting that we did several years ago (from DTM period).

It would be great if someone can give me some hints/direction to troubleshoot.
Many thanks,
Yu