Blurry block textures with visible horizontal lines

Almost all block textures (Chests are not affected) have become blurry and have clear horizontal lines between them. This issue arose once randomly and now happens on every game session in every world. Some previous sessions on the same snapshot with the same settings on the same device had no issue. Changing video setting presets does nothing to help. Only affects opaque pixels of block textures, i.e. transparent pixels remain at the size/location where they normally do.