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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: HIGHWatch how CrashCatch Analyze turns a raw Windows crash dump into a clear, actionable report in seconds.
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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:4912CrashCatch doesn't dump data and leave you to figure it out. Explain Mode reads the evidence and tells you what happened.
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: HIGHEngineer Mode generates a complete debug session from the crash data using a deterministic Rust engine. No AI, no API key, no network. Instant.
─── HYPOTHESES ───────────────────────────────
● [HIGH 91%] Null Pointer Dereference
✓ RAX = 0x0 (null read target)
✓ Access violation at address 0x0
✓ Fault in AEnemy::Tick (user code)
✗ No deallocation in stack (not UAF)
─── WINDBG PLAN ──────────────────────────────
1 !analyze -v
Full automated analysis
2 ~~[0x1a4c]s; k
Switch to crashing thread, print stack
3 dt AEnemy @rcx
Inspect object at null register
4 !heap -p -a 0x0
Check heap metadata at fault address
─── BLAST RADIUS ─────────────────────────────
Severity CRITICAL
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