J-Link: Live expression do not work after upgrade to STM32CubeIDE 2.1.0

[Stefan1]

Title edited to indicate that this is specific to J-Link.

---

Hi,

After updating to STM32CubeIDE 2.1.0 I get the following message after starting a debug session. Live expressions do not work.

From the console:

SEGGER J-Link GDB Server V9.14a Command Line Version

JLinkARM.dll V9.14a (DLL compiled Jan 28 2026 17:11:52)

Command line: -port 2331 -s -device STM32F769NI -endian little -speed 4000 -if swd -swoport 2332 -vd -rtos C:\ST\STM32CubeIDE_1.11.2\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.jlink.win32_2.5.200.202601091506\tools\bin\GDBServer\RTOSPlugin_FreeRTOS.dll
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2331
SWO raw output listening port: 2332
Terminal I/O port: 2333
Accept remote connection: localhost only
Generate logfile: off
Verify download: on
Init regs on start: off
Silent mode: off
Single run mode: on
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: STM32F769NI
Target device parameters: none
Target interface: SWD
Target interface speed: 4000kHz
Target endian: little

Connecting to J-Link...
J-Link is connected.
Firmware: J-Trace PRO V2 Cortex-M compiled Dec 4 2024 17:58:04
Hardware: V2.00
S/N: 752000803
Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB
Checking target voltage...
Target voltage: 3.33 V
Listening on TCP/IP port 2331
Connecting to target...
Halting core...
Connected to target

 

The debug settings:

 

[Andrew Neil]

What version did you upgrade from ?

Presumably you did have it working in that previous version?

And other debugging stuff is working OK?

[Stefan1]

I upgraded from STM32CubeIDE 2.0.0

Live Expression did work before; I simply updated and then started the debugging and got the message.

[Andrew Neil]

and other debug functions still work as before ?

[AScha.3]

btw You set the core clock to 8M - really run the core at 8 MHz ?? set the real core clock here.

[Stefan1]

I have now changed the core speed setting to 216 MHz, but the same issue remains.

Thank you for noticing.

[Stefan1]

A reinstall did not solve the issue.

[Andrew Neil]

Does it work with ST-Link ?

[DKilg]

Hi,

I’m experiencing the same issue after updating to STM32CubeIDE 2.1.0.

Live expressions are not working for me after the update using J-Trace PRO V3 Cortex.

[Andrew Neil]

Does it work with ST-Link ?

[DKilg]

It works with ST-LINK

[Souhaib MAZHOUD]

Hello @Stefan1 @DKilg 

Actually, our team are aware of this issue and currently working on resolving it. (Ticket 227696 This is an internal tracking number and is not accessible or usable by customers)

Thank you,

KR, Souhaib

[MZupi.1]

Can we expect this bug fixed any time soon or is it best that we downgrade to some known working version?

[Andrei Chichak]

I'm seeing the same thing with 2.1.0 on MacOS with Jlink.

Not only does the message come up on every download (debug or just run), but with debug, there are no values so they don't update.

 

[Souhaib MAZHOUD]

Hello,

This issue has been fixed in the latest version of STM32CubeIDE v2.1.1

BR, Souhaib