While the response to Street Fighter V: Arcade Edition has been positive, it is not without its bugs. Urien has one that is potentially game-breaking until Capcom releases a patch to rectify it.

While toying around in the code, WydD — developer of sfvsim — discovered a bug where usage of Urien’s V-Trigger II can cause his hurtboxes to disappear, which translates into a completely invincible Urien. The bug is a result of his armor for V-Trigger II’s charged moves sharing the same ID as his hurtboxes, so when the armor is removed, so too the hurtboxes. He also notes that there is a PC workaround for now, but this is only in place of what will have to be an impending patch from Capcom.

WARNING! MAJOR @StreetFighter AE BUG!⚠️

Urien loses all his hurtboxes after armor impact on VT2 with V-Skill (charged or not). Other reported cases: https://t.co/ezgXoY5Pgm https://t.co/VBmiYzAKwD Nothing is said in the scripts. So I took a look at it inside the game memory? pic.twitter.com/cGXu26tGWj — Loïc *WydD* Petit (@WydD) January 22, 2018

Here's a rendering of the hitboxes and hurtboxes before and after the armor impact. (I'm not showing here the collision boxes because the game is in a state where I cant get them with accuracy but they are present!) pic.twitter.com/nRK5NlNZ1M — Loïc *WydD* Petit (@WydD) January 22, 2018

Understand that the bug extends until the end of the move! You just can't punish that because Urien basically no longer has a hurtable body. This is terrible news before #EvoJapan2018. I'll keep digging by modding the move to check what causes it. — Loïc *WydD* Petit (@WydD) January 22, 2018

Alright, thanks to @Killbawx who hinted the solution it's because of a bug in the scripts. The way it works is the following: if you have a hit/hurtbox (armor or not) in the game. It has an internal identifier. One ID can refer to multiple boxes. — Loïc *WydD* Petit (@WydD) January 22, 2018

This identifier is used to remove all the boxes in case of a hit/armor. In the case of https://t.co/AvTxroAEdD both armor box belong to the same group. So far so good. The issue is: the armor boxes share the same ID as all the other hurtboxes!! — Loïc *WydD* Petit (@WydD) January 22, 2018

Meaning: when the armor hits, the engine removes the armor box because it has been hit, but it also removes the hurtboxes as well because they share the same ID. By modding the script and changing those box ID the script behave as expected. — Loïc *WydD* Petit (@WydD) January 22, 2018

Hint to the Urien players: if you don't have to change side. Don't touch anything after the move! You will still have 41 interruptible frames left in the script that are fully invincincible. A new way of taunting! That will please @GOOD_NEMO Thanks @HatsonFGC for the idea 😀 pic.twitter.com/OYMLLeJt3h — Loïc *WydD* Petit (@WydD) January 22, 2018

Source: Loïc *WydD* Petit (Twitter)