Despite their colors being very different, glow lichen use the same color as vines on maps. If this is unintentional, then it is most likely due to reusing code from vines for glow lichens (or the other way around).
In maps, wheat is always shown in green
Many stripped wood and log blocks have incorrect/inconsistent map colors
Pistons are gray on maps in positions they should not
Normal shulker box and purple shulker box have wrong color on maps(the two color should be interchanged)
Dark prismarine, stairs or slab and prismarine, stairs or slab have wrong color on maps(the two color should be interchanged)