I've spent the past week comparing multiple base packages and combinations thereof. Because I began to forget things, I started taking screen shots of various package combinations and noticed that pricing for the same exact combinations appeared to change.
For example, my cart containing 10 Standard Diamond, 10 Academic Professional, 10 Messianic Diamond, 10 Orthodox Diamond, 10 Reformed Portfolio, and 10 Preaching Essentials has a total of $3,339.71. However, if I start moving packages around and add other items, the pricing for one of those base packages will at some point increase in price by $375.32, which happens to be the exact price of the Full Feature Upgrade that I had not selected anywhere.
I can sometimes get the pricing on the impacted package to reset by removing and adding it again. However, the $375.32 will then migrate to one of the other base packages in my cart. The only way I've found to eliminate the bug entirely is to empty my cart of every item, log out of the website, close all Logos.com tabs, and then restart my computer or clear my cookies. Unfortunately, the bug will eventually return, so once I finally settle on the combination I wish to purchase, I’ll take the precaution of adding all of the items to a clean cart following a clean OS boot.
I am experiencing the same issue on my Android phone (using Brave browser), so this is not isolated to my PC.
Bottom line, be sure to double check your pricing if you are purchasing multiple packages at the same time.