[fixed]Aura in stack-target gone = crash

by **Aswan jaguar** » 18 Dec 2017, 16:40

Describe the Bug:
I had 2 crashes with 2 different auras but similar scenarios.
1- I cast Elemental Resonance on Jackalope Herd - crash.
2- I sacrificed a creature with Undercity Informer that was about to be enchanted with Death's Approach - crash.

elemental resonance-jackalope herd.rar: Elemental Resonance dmp. error; (11.03 KiB) Downloaded 203 times

Death's Approach crash | Open: bad parameters
get_card_instance(-1, -1)
0: 0x0247CE18
1: 0x024A4FDE
2: 0x024D8651
3: 0x02481DB0
4: 0x02483747
5: 0x02483911
6: 0x024EC735
7: 0x024D745D
8: 0x024D7FC4
9: 0x024D8B79
10: 0x024AB33C
11: 0x004368F9
12: 0x024D84B0
13: 0x00475CBF
14: 0x024D76FF
15: 0x024D7D97
16: 0x004371B4
17: 0x00477CED
18: 0x024A6E98
19: 0x02481E17
20: 0x02483747
21: 0x02483911
22: 0x024EC735
23: 0x024D745D
24: 0x024D7BB3
25: 0x004368C6
26: 0x024ADF57
27: 0x0043BFAA
28: 0x004399BD
29: 0x0047902C

Which card did behave improperly?
aura mechanism?

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel

What exactly should be the correct behavior/interaction?
No crashes for sure if auras target has left battlefield.

Are any other cards possibly affected by this bug?
-

by **Aswan jaguar** » 05 Jan 2018, 09:51

The same bug/crash affects also auras - Illusion creatures and similar worded abilities.
This bug with auras is the number 1 reason that causes crashes in dev version and things get worse when AI is involved as crashes happen while AI makes computations.

by **Aswan jaguar** » 10 Apr 2020, 15:34

Fixed in commit 99888c8. It affected almost every function that depended on targeted_aura_impl() so around 200 cards.

by **Aswan jaguar** » 11 Apr 2020, 18:39

Some corrections and additions in commit b3b6a53.
From the ones I have tested I can't find a way to fix Instill Energy.
Few may need extra work so let's keep an eye.