P6 EPPM R18 & R19 - Unable to 'assign' project baseline.

HI,

I do  not seem to be able to assign newly created baseline as a 'Project baseline, there is a sign that appears when hovering mouse on 'Project baseline' see screenshot below.

I am however bale to assign newly created baseline as  ' User's primary base line'.

Is this something to do with permission?

Thanks.