I am receiving the 20-Gem card for having collected all the rares when there are 6 that I have not collected any of:

Hallowed Moonlight
Part the Waterveil
Dark Petition
Radiant Flames
Rakdos's Return
Unexpected Results

All 6 show on the Card Image Gallery as being available in MTG Arena Store Packs.

I initially received 5 of the 20-Gem cards since I was opening 10 packs at a time. I didn't think I had collected everything, so I tested it again by opening only 1. I used the "Repair Game File" function and tried once more with a single pack, only to still receive a 20-Gem card.

I am running MTGA on a Mac via Epic.

I have received 7 x 20-Gem rewards. I would like 140 Gems deducted from my account and replaced with 7 rare Wildcards to make up for the PIO rares I should have received when cracking packs.