Why kanban board is not visible in one project if both project share the same pemission schema?

[Denys Dudnyk]

The kanban board from the second project is not visible to the employee, but both projects share the same permission schema. I followed https://support.atlassian.com/jira/kb/board-does-not-exist-or-you-do-not-have-permission-to-view-error-in-jira/ and it doesn't help. 
The board assigned to the project in location field, other settings were also verified.
What I missed?
Please help.

[Walter Buggenhout]

Hi @Denys Dudnyk,

Check the board filter of both boards. If the board filter isn't shared (at least with view permissions), then the board itself will not be visible to the user.

Hope this helps!