Smart Folder > Some users unable to see sub boards

We have a smart folder configured to show projects.

Under each project, we have some boards that are setup and visible to all users.

However, not all users can see those boards.

I’ve double checked the board permissions and it is set to visible for all users.

A user needs to have permissions for all of the databases in the view (Task, Action Item and Bug) to be able to see the view.
Is it possible that some users don’t?

Thanks Chris that sounds like it is it, I’ll have another think about how we structure things to handle permissions.