Group Tasks Not Working in Zoho Mail Tasks

Group Tasks Not Working in Zoho Mail Tasks

I have created a Group in Zoho Tasks and shared it with a colleague. In Board view I have arranged the tasks as per attached screenshot. However when the colleague accesses the same Board in Zoho Tasks, and switches to Board view, he sees only the generic view, and does not see any Group Tasks unless he is the Assignee of the Task. I want my colleague to view all tasks and Kanban columns. Please advise if Zoho Tasks can do this?

The organisation is agribook.co.za.