Played a game of tryndamere jungle got an s- i was even rewarded with hextec chest i already have him mastery rank 5 for a couple of weeks it came up that i was awarded a token and i haven't received the master 6 token yet its been 2 days
420 grams1 votesTwisted treeline unfortunately doesn't give mastery tokens, despite having a ranked mode.
RedXbow1 votesIt does give mastery tokens there because i received a mastery rank 6 token for master yi there
Zombiemaster1 votesNo, Twisted Treeline does not give mastery tokens. Only normal and ranked Summoner's Rift does.
You can only earn Mastery 6 and 7 tokens in Summoner's Rift normal and ranked games.
https://support.riotgames.com/hc/en-us/articles/204211284-Champion-Mastery-Guide#h1q5
As for you getting a token for Master Yi, either it was a bug at that time or you are remembering it incorrectly.