I can no longer qcess any missions for the final shape.
I have purchased both the final shape expansion and the annual pass.
Noticed that i could no longer equip prismatic sub class and no longer complete final shape mission without being prompted to purchase it again.
I have completed the final shape campain and have previously equiped prismatic class on my account.
Any help or guidance would be great.
Are you still on the platform you purchased it on? if so [url=https://help.bungie.net/hc/en-us/articles/360049196071-Accessing-and-Restoring-Licenses-to-Destiny-Content]try restoring licenses[/url] - if that doesn't work you'll need to contact your platforms support team.
If you aren't on the platform you purchased it on, then expansions aren't cross-platform via cross-save.