JQL for epics and the linked Tasks

[Frank Lohfeld]

Hello,

I'm search a JQL expression. that find every EPIC with a special value. And all Tasks, that assigned to this Epics.
The special EPIC Attribute is named "DTCS" and the value i search is "yes" (Checkbox)

I start with 

type = Epic AND DTCS = Yes

This found the needed Epics - but how i can determine the issues linked to this epic in only one JQL

 (type = Epic AND Workstream = Yes) and (type=task and "Epic Link" has DTCS=yes )

[Jobin Kuruvilla [Adaptavist]]

Make sure your filter query has the project criteria in it. If it is generic, the board assumes that you want to show issues from all project and that will pull in versions from all projects in to the board.

[Nic Brough -Adaptavist-]

Are the projects included in the issue filter for the board?