Self-Host: Triggering workflow to topic subscribers doesn't work

Can we solve this problem once and for all?

Like @Mei (Trigerring workflow with topic not working.) suggested, there is a variable

IS_TOPIC_NOTIFICATION_ENABLED

IS_TOPIC_NOTIFICATION_ENABLED

.
But in all cases in

.env

.env

files it is set to

true

true

and feature still doesn't work.

Self-Host: Triggering workflow to topic subscribers doesn't work - Novu