Hi @phiology,
Thank you for sharing your save file for version 0.5.8.103. We have identified that this bug is caused by the card “07042.” In your situation, you have two upgrades in play, and this card is designed to discard only one, which leads to a mismatch in the target number.
Additionally, this card is intended to discard a Support card, but we mistakenly labeled it as an Upgrade in the script.
Thank you again for your help! We will fix this issue in the next version.