Invisible Ziggs Bombs - Pool Party Skin

Today I was playing a game as pool party Ziggs and at the 17 minute mark, after a re-spawn, my bombs became invisible. At first I thought it was just a glitch on my client but an enemy commented on it too. The Q's were completely invisible except for the little splash animation on the ground when it bounced. The W was fine but the E was also mostly invisible except for the yellow particles around each bomb was still visible. The R was completely invisible except for the red indicator showing where it would land. It felt dirty to keep playing with such a huge advantage on my side. When I watched the replay on the client, it showed everything just fine, no invisible bombs this time.