Anssi Suurkoivu

I used some torches to lit up my guardian farm and one time I visited there all the blocks above the torches in one corner of the farm were dark and mobs were spawning next to a torches but just one block higher. I planted new torches at the dark places and removed them right away and the light levels were fixed, but I think I experienced this same bug.

Smelted and silk touch mined stone blocks do not stack together. At least the smelted ones cannot be traded with stonemasons.

Happened to me also. I'm playing on Switch and the world was created in 1.7.0