Runes never drop after update to Afterbirth+: bug or bad luck?

Runes never drop after update to Afterbirth+: bug or bad luck? - Macro Photography of Brown Beetle With Dew Drops

I have all runes from classic The Binding of Isaac: Rebirth challenges unlocked, and while I was playing Rebirth, they dropped with regular frequency. However, after installing Afterbirth and Afterbirth+ updates, and playing quite a few runs, I haven't seen a single rune drop. The challenges still marked as completed on "Challenges" page.

Could this be a bug introduced by the update? Is there any way to test the fact that a pickup is properly unlocked?






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Runes never drop after update to Afterbirth+: bug or bad luck? - Grayscale Photo of Leaf With Dew Drops
Runes never drop after update to Afterbirth+: bug or bad luck? - Selective Focus of Water on Leaf
Runes never drop after update to Afterbirth+: bug or bad luck? - Closeup of blossoming orange flower with small water drips on delicate wavy petals on blurred background





Essential Unlockables - The Complete Guide (The Binding of Isaac: Afterbirth+)




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Images: Egor Kamelev, Pixabay, Nicholas Githiri, Michelle Leman