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Windows 10/11 · Unreal Engine 4/5 · MSVC · PDB
EXCEPTION 0xC0000005 ACCESS_VIOLATION
OPERATION Read at address 0x00000000
─── STACK TRACE ──────────────────────────────
#0 AEnemy::Tick(float DeltaTime)
Enemy.cpp:214
#1 AActor::TickActor(float, ELevelTick)
Actor.cpp:892
#2 UWorld::Tick(ELevelTick, float)
World.cpp:1201
─── ANALYSIS ─────────────────────────────────
● Null pointer dereference
Read at 0x0 · Target == nullptr
Frame: AEnemy::Tick() line 214
● Root Cause
Validate Target before calling Tick()
Confidence: HIGH
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CrashContext.runtime-xml#0 AEnemy::Tick(float DeltaTime) Enemy.cpp:214
▶ Likely root cause — null Target dereference
#1 AActor::TickActor(float, ELevelTick) Actor.cpp:892
#2 AActor::Tick(float DeltaTime) Actor.cpp:712
#3 UWorld::Tick(ELevelTick, float) World.cpp:1201
#4 UGameEngine::Tick(float, bool) GameEngine.cpp:1445
#5 FEngineLoop::Tick() LaunchEngineLoop.cpp:4912
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Exception: 0xC0000005
Access violation reading
location 0x00000000
Faulting module:
UE4Editor-MyGame.dll
Offset: 0x00012A34
Stack:
ntdll.dll
kernelbase.dll
UE4Editor-MyGame.dll
...
Null pointer dereference detected.
MOST LIKELY ORIGIN
AEnemy::Tick() line 214
EVIDENCE
Read access at address 0x0
Stack frame ownership confirmed
Target == nullptr at call site
SUGGESTED CHECK
Validate Target pointer
before Tick() is invoked.
Confidence: HIGH
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─── REGISTERS ────────────────────────────────
RAX 0x0000000000000000 RBX 0x00007ff6a4b2c810
RCX 0x00007ff6a4b2c810 RDX 0x000000b4e7dff2a0
RSI 0x0000000000000000 RDI 0x000000b4e7dff310
RIP 0x00007ff6a4b12a34 RSP 0x000000b4e7dff1c0
─── THREADS (4 active) ───────────────────────
● Thread 0 [CRASHING] GameThread
Thread 1 RenderThread
Thread 2 TaskGraph Worker
Thread 3 Audio Worker
─── MODULES ──────────────────────────────────
UE4Editor-MyGame.dll v1.2.3 PDB ✓
UE4Editor.exe v5.3.0 PDB ✓
ntdll.dll v10.0 PDB (MS Server)
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