[UPDATE] Placed blank banners are invisible, but reappears after relog

Well... the title is explict enough...
When I tried to place a blank banner, no matter the main color, the banner isn't showing... It applies for hanged banners on a wall and banners planted on the ground.

While a decorated banner seems to get shown...

 

UPDATE: According to the video I send, it disappers only when it's placed. But when I reloged inside my world, the "previously invisible banner" reappeared.