recompilation results in indicator/EA not loading - page 2

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Sonuparit #:
Nothing is working - not beta release, not stable release, not the /portable argument.
not either beta or release? i am not aware of any 3rd version. please go to About in Help menu and report the version number.
 
the same problem , it took 5 days without solving , i converted my indicators into scripts to run them , developer team in MT5 should go now , repeated fault every year
 
dradnanco #:
the same problem , it took 5 days without solving , i converted my indicators into scripts to run them , developer team in MT5 should go now , repeated fault every year

Sounds like a corrupted installation and/or update. I'm not having those problems in Release Build 5430 nor Beta Build 5488.

Try rolling back to 5430. Also, there are AVX2 versus x64 versions.

Here's x64 Release Build 5430:

Forum on trading, automated trading systems and testing trading strategies

MT5 build 5445 rendering bug

Alain Verleyen, 2025.11.27 14:45

I just uploaded build 5430 X64 for CPU not having AVX2.

Please try it.

https://t.me/MT5Exe/6


 
Alain Verleyen #:

Don't use beta build if you don't want to be beta-tester.

https://www.mql5.com/en/forum/502088

Alen, to be honest, the information at https://www.mql5.com/en/forum/502088 didn't really HELP me because I DID NOT UNDERSTAND the meaning!
I guess I'm one of those people who "don't quite understand short, concise, and concise text" (?!) :]

But when you told me HERE: -->> https://www.mql5.com/ru/forum/431094#comment_58810199  something different word's (Thank you), like "CHANGE YOUR BROKER, since it's the MQ demo account that downloads BETA updates" – it took me a while to figure it out (like a giraffe on the third day)! :)

... and here's WHAT the AI-tool says about this:

Why did "changing broker" help?!
According to the documentation, Live Update checks the version when connecting to the trading server, and if the server is running a new build, the terminal "suggests/requires" an update.

  • MetaQuotes-Demo is running the latest/beta version → the terminal "sees" 5488 → prompts to apply → indicators break.
  • Another broker is running a stable build → the terminal doesn't see the "new version" → the update isn't forced → .ex5 is built and loaded correctly.

This confirms the recommendation of an experienced forum member: "Change the demo server to any other (not MetaQuotes-Demo), and the problem will go away."


... brief summary:

IF the indicator crashes with error [539] -->>:

1) roll back to the previous build version...
2) change your demo account to a DIFFERENT broker (NOT "MetaQuotes-Demo") (!)
 
Vitaliy Kostrubko #:
Alen
Who the heck is Alen? Once again in the Forum, it's Alain. 😅
 
Vitaliy Kostrubko #:
Alen, to be honest, the information at https://www.mql5.com/en/forum/502088 didn't really HELP me because I DID NOT UNDERSTAND the meaning!
I guess I'm one of those people who "don't quite understand short, concise, and concise text" (?!) :]

But when you told me HERE: -->> https://www.mql5.com/ru/forum/431094#comment_58810199  something different word's (Thank you), like "CHANGE YOUR BROKER, since it's the MQ demo account that downloads BETA updates" – it took me a while to figure it out (like a giraffe on the third day)! :)

... and here's WHAT the AI-tool says about this:

Why did "changing broker" help?!
According to the documentation, Live Update checks the version when connecting to the trading server, and if the server is running a new build, the terminal "suggests/requires" an update.

  • MetaQuotes-Demo is running the latest/beta version → the terminal "sees" 5488 → prompts to apply → indicators break.
  • Another broker is running a stable build → the terminal doesn't see the "new version" → the update isn't forced → .ex5 is built and loaded correctly.

This confirms the recommendation of an experienced forum member: "Change the demo server to any other (not MetaQuotes-Demo), and the problem will go away."


... brief summary:

IF the indicator crashes with error [539] -->>:

1) roll back to the previous build version...
2) change your demo account to a DIFFERENT broker (NOT "MetaQuotes-Demo") (!)

Are you asking for something ? 

My firstname is Alain. Nothing else.

 
Ryan L Johnson #:

Sounds like a corrupted installation and/or update. I'm not having those problems in Release Build 5430 nor Beta Build 5488.

Try rolling back to 5430. Also, there are AVX2 versus x64 versions.

Here's x64 Release Build 5430:


Thanks for sharing, this is very helpful 

I tried this its working great !

 

how do you even roll back,


built a new pc and all my broker offers is 5488 and also off the metaquotes site.

alot of my custom indies are broken, my ea is kaput

 
Vitaliy Kostrubko #:
Alen, to be honest, the information at https://www.mql5.com/en/forum/502088 didn't really HELP me because I DID NOT UNDERSTAND the meaning!
I guess I'm one of those people who "don't quite understand short, concise, and concise text" (?!) :]

But when you told me HERE: -->> https://www.mql5.com/ru/forum/431094#comment_58810199  something different word's (Thank you), like "CHANGE YOUR BROKER, since it's the MQ demo account that downloads BETA updates" – it took me a while to figure it out (like a giraffe on the third day)! :)

... and here's WHAT the AI-tool says about this:

Why did "changing broker" help?!
According to the documentation, Live Update checks the version when connecting to the trading server, and if the server is running a new build, the terminal "suggests/requires" an update.

  • MetaQuotes-Demo is running the latest/beta version → the terminal "sees" 5488 → prompts to apply → indicators break.
  • Another broker is running a stable build → the terminal doesn't see the "new version" → the update isn't forced → .ex5 is built and loaded correctly.

This confirms the recommendation of an experienced forum member: "Change the demo server to any other (not MetaQuotes-Demo), and the problem will go away."


... brief summary:

IF the indicator crashes with error [539] -->>:

1) roll back to the previous build version...
2) change your demo account to a DIFFERENT broker (NOT "MetaQuotes-Demo") (!)
New Mt5 version released on 19 december 2025, 5488 has a BUG; No new or modified custom indicator is attaching to chart. Try create a simple custom indicator and attach, you'll get error [539].
 
REX KRAMER #:

how do you even roll back,


built a new pc and all my broker offers is 5488 and also off the metaquotes site.

alot of my custom indies are broken, my ea is kaput

Forum on trading, automated trading systems and testing trading strategies

recompilation results in indicator/EA not loading

Ryan L Johnson, 2025.12.26 00:28

Sounds like a corrupted installation and/or update. I'm not having those problems in Release Build 5430 nor Beta Build 5488.

Try rolling back to 5430. Also, there are AVX2 versus x64 versions.

Here's x64 Release Build 5430:



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