Modpack version
1.76a

Issue
Iron ores (and other ores) not transforming in nighttime when linked to crystal.

Logs

Screenshot of setup:
https://i.imgur.com/sByteGj.png

Does the crystal have clear line of sight to the sky?

Yes as seen in the picture, however apparently other crystals do work. Does this mean this crystal is just bugged? It's close to my base so I would really like it to work.

Oh Woops, I didn't notice the screenshot. Yep, that happens occasionally I'm afraid.