In addition to a description of the bug you are reporting, please provide:
Device Type: Handphone
Device Model: iphone 13
Device Operating System: 17.4.1
Diablo Immortal App Version: 2.3.4
You can only get essence points from the first 100 legendaries extracted each week…
When you get to the 100th legendary, you are given a warning dialog to tell you that any further extractions will not give mastery points and asked if you want to keep being warned or not.