Having this same issue, our world was generated about 3 days after 1.14 full release, and these skylight patches are appearing / moving around in caves under our world. We restart every night, and have noticed it in different spots after a restart.
Justin Holas
Having this same issue, our world was generated about 3 days after 1.14 full release, and these skylight patches are appearing / moving around in caves under our world. We restart every night, and have noticed it in different spots after a restart.