Breadcrumb issues – Categories + Forum Topics

Hello. I cannot for the life of me get categories to display in the breadcrumbs.

Permalinks are set to Custom > /%category%/%postname%/

And in Yoast > Settings > Advanced > Breadcrumbs > Breadcrumbs for post types > Post is set to Category.

And for bbPress Forums, which I have behind a user reg form, the breadcrumbs on the forum index display as:
You Are Here: Homepage » Forums (which disregards the parent page MMCA Members after Homepage).

Then when I click on a forum, I get: You Are Here: Homepage » Forums » News & Community (again, no parent page after Homepage)

Then, when I click on a topic, it changes to
You Are Here: Homepage » Topics » News & Community » Test (no parent page and no Forums page?)

I would like for the whole path to display : You Are Here: Homepage » MMCA Members » Forums and then have that all still display based on the forum they choose + topics/replies.

The page I need help with: [log in to see the link]