Spruce trees no longer generate in the mega spruce taiga (old growth spruce taiga) biome.

Neither the mega spruce nor the normal spruce trees generate in the mega spruce biome, leaving a vast wasteland with only the azaleas present in cases where lush caves are below. Mega pine/old growth pine and standard taiga biomes still work properly and generate spruce trees.

Steps to Reproduce:

• Create a world with a nearby mega spruce biome, for example, seed -977118593 and located 100 blocks east.

Expected Results:

Standard spruce and mega spruce generation in mega spruce biomes.

Observed Results:

The grass, mossy blocks, azaleas and mushrooms are present, but all the spruce trees are missing. (See screenshot below.)