So last season's pass....left something to be desired. So I did what any reasonable person would do....continues my daily a d doing the challenges because the game is/was enjoyable. Log in to check out season 3 and all 63,000 tix are gone.... is this normal or a glitch
The short answer is that they removed all your Tix. It's not a glitch or bug, it's the intended behaviour.
Originally the issue was that the Season was very long and the pass had very few items to purchase, so anyone who did Tasks with any regularity throughout the season would end up with tens of thousands of Tix and nothing to spend them on. They decided that at the end of a season they would remove a percentage of everyone's Tix (they never said what portion, or why). That didn't solve anything or address any of the issues. They said they didn't want to waste players time and so the next solution they decided on was to simply erase all the Tix everyone has at the end of the season, explicitly wasting any time or effort spent to acquire them in the first place. They added the functionality that if there was anything left in the Pass that a player didn't buy (almost assuredly because they didn't want those things) then your Tix would be spent on all those worthless and annoying cluttering items and then the remainder would be removed.
