Invisible Shaco R Bug

Dear Riot I find out a bug which can be a disaster in rank. When Shaco use R then Tahm kentch (the new champion) eat the fake one and spit it out, It will be invincible ( even pink ward doesn't work) and it will just kill the enemy with invisible all the time. ( two champion in the same team). Can you please find out what is happening and fix this bug please thank you!