Debugger Live expressions data corrupted

[albertLDS]

Hi there,

I'm debugging an STM32L081 project with an ST-LINK/V2 ISOL, and the Live Expressions data during the debug session is corrupted.

Sometimes, removing all expressions, stopping the debug session, and/or power-cycling the processor makes the data display correctly again. However, after a simple code update, or adding  new data on Live expressions; the data becomes corrupted once more.

This has been a known issue since 2023. I’ve seen many colleagues reporting the same problem. Even ST technicians have escalated it under internal ticket IDs 222326 and 175214.

Unfortunately, as of early 2026, there has been no update.

I have installed the latest STM32CubeIDE 2.0.0, but the issue still persists.

Come on, ST team!!!!

You are aware of this issue. Please inform the community about when it will be fixed.

Thanks in advance.

[albertLDS]

Hi there,

Just some updates from my side:

- Debugger ST-LINK/V2 firmware V2J45S7

- Big RAM size for stack 

- Always RUN mode. No low power, no standby mode,  no sleep mode, and no stop mode.

Attach a picture where you can see the data corrupted.

On breakpoint, the popup data over variable OS is correct. BUT the same data on Live Expression is corrupted!!!

It seems that the data on Live Expression are moved one position!!!

Thanks

[albertLDS]

Hi ST guys!!!!!

After 2 month no updates?

Thanks