Bidirectional related fields between posts are not working correctly

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I sent this to ACF not realizing this feature was actually an ACF:Extended ability.

I am running ACF Pro - Version 5.10.2
and Advanced Custom Fields: Extended - Version 0.8.8.5

I have setup a relationship between 2 post types: products and Finance & Promotions Options

Product's ACF relationship field is here - https://share.getcloudapp.com/bLuqlExb
Fin&Promo Option's ACF relationship field is here - https://share.getcloudapp.com/04ux6BEw
...both are bi-directional.

So, we set 2 of the Fin&Promo Option entries to be related to the same product, the S220:
"No Interest if Paid in Full within 12 months on New John Deere S200 Series Lawn Tractors" - https://share.getcloudapp.com/Wnu0mOZq
"4.90% APR fixed rate for 60 Months on New John Deere S200 Series Lawn Tractors" - https://share.getcloudapp.com/X6ulKpKW

But, when we go into the S220 product, only 1 Fin&Promo Option is showing:
https://share.getcloudapp.com/Apu9v4lg

We have to be able to set the relationship at the Fin&Promo Option versus each individual Product...and our hope was that bidirectional relationships would work for any number of related options to a product.