Problem with the "Mass Storage" upload method from the Arduino IDE to a Nucleo board

[6v6gt-duino]

I'm using the latest version of the Arduino IDE 2.3.6 under Windows 11.
I am also using 2.11.0 of the STM32 MCU Boards package for Arduino.
I have a Nucleo 64 board F103RB

If I attempt to upload code from the Arduino IDE with the default "Mass Storage" upload method, I get a message "Upload complete on NODE_F103RB ( =)", however, no code is actually uploaded. That is, the upload has failed silently.

If, however, I install the Cube Programmer V2.21.0 and select the CubeProgrammer(SWD) upload method in the Arduino IDE, then it all works.

If I use just the Cube IDE 1.19.0, that is without the Arduino IDE, I can also successfully load code to the Nucleo board.

I can, of course, open a formal issue, but would like first to hear if there could be a simple explanation which I may have missed,

EDIT 1

I have checked the contents of the virtual disk that the Nucleo presents to the PC and there are only 2 files on it, neither of which are related to the failed upload attempt.

The silent failure with "Mass Storage" upload method looks like this on the console:

Using library SrcWrapper at version 1.0.1 in folder: C:\Users\6v6gt\AppData\Local\Arduino15\packages\STMicroelectronics\hardware\stm32\2.11.0\libraries\SrcWrapper 
Using library USBDevice at version 1.0.0 in folder: C:\Users\6v6gt\AppData\Local\Arduino15\packages\STMicroelectronics\hardware\stm32\2.11.0\libraries\USBDevice 
"C:\\Users\\6v6gt\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools\\xpack-arm-none-eabi-gcc\\14.2.1-1.1/bin/arm-none-eabi-size" -A "C:\\Users\\6v6gt\\AppData\\Local\\arduino\\sketches\\20692D3B8705A232B9C125467CCF1873/Blink.ino.elf"
Sketch uses 23792 bytes (18%) of program storage space. Maximum is 131072 bytes.
Global variables use 4388 bytes (21%) of dynamic memory, leaving 16092 bytes for local variables. Maximum is 20480 bytes.
Upload complete on NODE_F103RB ( =)

EDIT 2

For comparison, this is the console output when there is a successful upload using the CubeProgrammer(SWD) upload method:

Using library SrcWrapper at version 1.0.1 in folder: C:\Users\6v6gt\AppData\Local\Arduino15\packages\STMicroelectronics\hardware\stm32\2.11.0\libraries\SrcWrapper 
Using library USBDevice at version 1.0.0 in folder: C:\Users\6v6gt\AppData\Local\Arduino15\packages\STMicroelectronics\hardware\stm32\2.11.0\libraries\USBDevice 
"C:\\Users\\6v6gt\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\tools\\xpack-arm-none-eabi-gcc\\14.2.1-1.1/bin/arm-none-eabi-size" -A "C:\\Users\\6v6gt\\AppData\\Local\\arduino\\sketches\\715728751AD771EBA2EFF48C7762D1FA/Blink.ino.elf"
Sketch uses 23796 bytes (18%) of program storage space. Maximum is 131072 bytes.
Global variables use 4388 bytes (21%) of dynamic memory, leaving 16092 bytes for local variables. Maximum is 20480 bytes.
Selected interface: swd
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.21.0                  
      -------------------------------------------------------------------

ST-LINK SN  : 0669FF535349836687113146
ST-LINK FW  : V2J46M33
Board       : NUCLEO-F103RB
Voltage     : 3.25V
SWD freq    : 4000 KHz
Connect mode: Under Reset
Reset mode  : Hardware reset
Device ID   : 0x410
Revision ID : Rev X
Device name : STM32F101/F102/F103 Medium-density
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M3
BL Version  : --



Opening and parsing file: Blink.ino.bin


Memory Programming ...
  File          : Blink.ino.bin
  Size          : 23.54 KB 
  Address       : 0x08000000


Erasing memory corresponding to segment 0:
Erasing internal memory sectors [0 23]
Download in Progress:


File download complete
Time elapsed during download operation: 00:00:01.545

RUNNING Program ... 
  Address:      : 0x8000000
Application is running, Please Hold on...
Start operation achieved successfully

EDIT 3

There is also some discussion of this issue of the Arduino Forum which may add more information:
https://forum.arduino.cc/t/i-got-issue-uploading-blink-sketch-to-stm32-nucleo-board/1414194