[GAMEPLAY] Got red trinket without buying it

Videos: 1: https://youtu.be/-ZHx5jxCyvA 2: https://youtu.be/5QZBds1N1zg

For apparently no reason i got red trinket without buying it myself. I can't really say what happened but i'm pretty sure that i didn't buy it (as singed in early game a red trinket is pretty useless and no one in the enemy team could become invisible) but the bug occurred twice in a row. As you can see in the first video the trinket changed by itself even though i changed it in the normal one. Sadly i have no in-game video but a after-game replay :/ I don't know if it can help but previously i created my first 2 item sets (in none of them i choose singed as champion). Even though that didn't affect the game, it was annoying so i hope that you can resolve this game soon or later. GLHF Summoners