MetaTrader Freezing? Universal Fix: Terminal Freeze and Crashes

Why an EA Works on Demo but Trades Differently on a Real Account

SYMPTOMS: DIAGNOSTIC REPORT .LOG

IF YOU SEE THESE SYMPTOMS, YOUR CORE IS OUTDATED

MT5_journal.log (Read-Only)

[10:05:22] ERROR COPYLOT: Signal transmission failed. Source Terminal -> Target connection lost.

[10:05:23] ERROR VirtualTradePad.ex5: OrderSend failed (Retcode: 10004). Execution blocked.

[10:05:24] WARNING EAPadPRO: Control panel unresponsive. EventChartCustom queue overflow.

[10:05:26] CRITICAL ExtraReportPad: Canvas rendering timeout (5000ms). GUI Freeze detected.

[AUTO-CHECK] SYSTEM Core Version Mismatch. Local terminal (Build < 5577) incompatible with new mql.dll.

user@expforex:~$ waiting for update protocol…

MetaQuotes frequently updates the Canvas rendering engine for security and performance. Whenever a new core is released, complex EAs like EAPADPRO, COPYLOT and VirtualTradePad lose compatibility with old builds. This is a recurring cycle. The only solution is to maintain Core Integrity via updates.

VERSIONS: CORE VERSION CONTROLLER

SELECT YOUR PREFERRED KERNEL VERSION

Proven stability for VirtualTradePad & Copylot. Download Below.

OPTION: LIVE UPDATE

5577+

BETA CHANNEL

Latest features, but may have compatibility issues. Click to view Guide.

PROTOCOL B: DOWNLOAD STABLE 5430

CRITICAL STEP: Before downloading, identify your CPU architecture. Installing the wrong version causes crashes.

Open Terminal -> Journal tab.
Check the first lines after start.
Look for: AVX2 or X64.

JOURNAL LOG

ARCH: AVX2

Optimized for modern CPUs (Intel i3/i5/i7, Ryzen). Fastest execution.

DOWNLOAD 5430 (AVX2)

ARCH: X64

Standard compatibility for older VPS and processors.

DOWNLOAD 5430 (X64)

Installation: Close Terminal -> Replace terminal64.exe in your folder with the file from ZIP.

Don’t restart yet!

MetaTrader will auto-update back to Beta unless you execute the Security Lockdown.

Go to Security Lockdown

PROTOCOL A: UPDATE TO LATEST (5577+)

Open Demo

Go to File -> Open an Account. Do NOT use “Check for Updates”. We need to force a server handshake.

Connect to MT

Type MetaQuotes and select MetaQuotes Ltd. This server pushes the freshest core files.

Await Transfer

After connecting to Demo, WAIT 10-15 MINUTES. Terminal downloads ~50MB silently. Then Restart.

Verify Version

Open Help -> About. Ensure you see Build 5577. If panels still lag, use Protocol B.

LIVE_FEED // UPDATE_PROCESS

AUTO-UPDATE: PREVENT SECURITY LOCKDOWN

CRITICAL STEP: CREATE A “DUMMY FILE” TO BLOCK UPDATES

C:/…/MetaTrader 5/

Config

LiveUpdate DUMMY FILE

MQL5

terminal64.exe

THE “DUMMY FILE” TRICK

Simply deleting the folder isn’t enough—MT5 might recreate it. Use this exploit to permanently lock the version:

Go to your terminal folder (right-click shortcut -> Open File Location).
Delete the existing LiveUpdate folder completely.
Right-click in empty space -> New -> Text Document.
Name it LiveUpdate (remove .txt extension). Confirm change.
Restart Terminal. MT5 will try to create the folder, fail (because a file exists), and skip the update.

Status: This creates a file system conflict that forces MT5 to stay on Build 5430 forever.

FAQ: SYSTEM KNOWLEDGE BASE

TECHNICAL ANALYSIS, SECURITY & COMPATIBILITY PROTOCOLS

Why is Build 5577+ crashing my panels?

MetaQuotes introduced a major rewrite of the Canvas Rendering Engine. Functions relying on the legacy Windows GDI (Graphics Device Interface) now conflict with the new multi-threaded drawing system. Complex panels like VirtualTradePad use precise GUI libraries that require strict thread synchronization, which was broken in the Beta channel.

Is it safe to delete the “LiveUpdate” folder?

Yes, absolutely. This folder only contains the updater binary. Deleting it acts as a mechanical “firewall,” physically preventing the terminal from downloading the unstable beta version again. It does not affect charts, indicators, or trade execution.

Will I lose my Charts, EAs, or History?

No. Your personal data resides in the /MQL5/ and /Profiles/ directories. “Protocol B” (Rollback) only replaces the engine file (terminal64.exe). Your trading environment, open charts, and expert advisors remain 100% intact.

Will my Broker block the old Build 5430?

Unlikely in the near future. Build 5430 is the last “Golden Stable” release. Brokers typically support stable builds for 6-12 months after a major core update. By the time they deprecate 5430, MetaQuotes will have fixed the bugs in the new version (e.g., Build 5600+).

Why is my CPU usage higher on the Beta version?

Beta builds often contain Debug Code and unoptimized logging, which consumes extra CPU cycles. The new Canvas engine also shifts load from GDI to the CPU/GPU. Rolling back to 5430 usually reduces CPU load by 20-30%, which is critical for VPS users.

Can I keep both versions (5430 & 5577)?

Yes. You can use /portable mode. Copy your MT5 folder to a new location (e.g., C:\MT5_Stable\), allow 5430 there, and keep 5577 in your main folder. Create a shortcut with "terminal64.exe /portable" to run them independently.

Will MQL5 Market products stop working?

No. Products compiled on the latest compiler work on older terminals (within reasonable limits). Since 5430 is very recent, all Market products purchased or downloaded will function correctly without “Version Mismatch” errors.

How do I update later when a fix is released?

When a stable patch (e.g., Build 5600) is confirmed safe, simply open your installation folder and restore the LiveUpdate folder (or just reinstall MT5 over the existing folder). We will post a “Green Light” notification on this page when it is safe to update.

SYSTEM RESTORED