this bug has been present since the merchants were updated, the banner on there stands (luxury merchants orange banner and the villager merchants green banner) these have appeared black instead of there appropriate textures.

related to this when i go to the trader and open up there menu, any an all decorative block, those being the blacksmiths blast furnaces, the village merchants green table cloth, the gift wrappers presents and table cloth, the luxury merchants cloth roof, and a plethora of  other things do not appear when in there trading menu, again this has been a problem since the merchants were updated.