Gideon Blackblade keeps Prevent Damage without token [Investigating]

in Event Terrors of Shadows:
PW: Gideon Blackblade Vs. Teferi
Blackblade token created, granting prevent damage, which was exiled by Teferi PW 3rd ability after 2 rounds.
My PW still kept „prevent damage“ over several rounds (5-6) without blackblade token on board until game was freezing completely

//Edited Title -Brigby

I had the same issue occur after exiling the token with Kaya’s 2nd ability.
I continued playing it long enough for the opponent to get another Blackblade token which this time I killed with a regular Destroy effect (Deathsprout) and the opponent still kept Prevent Damage.

I just lost, had to quit a match of The Grand Tournament, because of this bug. Give me my points back!

Dealing with this issue right now in NoP. My deck only has exile effects so I’m in a stalemate.

I have this issue occurred just a moment ago, during Hunter X Bonder coalition event. It happened after I exiled the token with Eat To Extinction. I had to left to game, since I had no way to win that game.
This issue should be fixed asap, since it allows to have players lost their games in a very easy way.

Issue happened to me today. I disabled the card my opponent had, but prevent damage never left until I removed the card.

@Oktagon_Support

Was once fixed many moons ago… 4.0 Release Notes *UPDATE 02/10/2020 - MtGPQ News & Announcements - 505 Go! Official Forums
Fixed an issue where Prevent Damage would remain active even after Gideon, Blackblade’s ability tokens were exiled.