custom runner on Windows 2025 short-token of gitlab-runner.exe takes 9 letter instead 8

Summary

I cannot run the build because the build path has the short token of 9 on server while on git is registered with 8.

Any suggestion?

Gitlab-runner version=15.11.0 and version=18.3.1

executor shell

GitLab Enterprise Edition v17.11.6-ee

Steps to reproduce

Add new runner on biosphere, get the token and run on windows server 2025

.\gitlab-runner.exe register --url https://xxxxx --token glrt-12345678UQ3xMKbWcFqu Runtime platform arch=amd64 os=windows pid=14120 revision= 436955cb version=15.11.0 Enter the GitLab instance URL (for example, https://gitlab.com/): [https://xxxxx]: Enter a name for the runner. This is stored only in the local config.toml file: --: MSBuild .NET NEW2 Enter an executor: parallels, shell, ssh, virtualbox, docker-autoscaler, docker-ssh+machine, kubernetes, custom, docker, docker-windows, docker-ssh, docker+machine, instance: shell Verifying runner... is valid runner=12345678U Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

Configuration (with the authentication token) was saved in "..\config.toml"

On Gitlab the new runner is labeled with (12345678)

Running the pipeline fail to find the solution because the build path on file system is ...\builds\12345678U\0

and NOT ...\builds\12345678\0 as expected

I'm just moving the runner on new PC with newer OS. In the past with Windows Server 2019 I had no problem with the pipeline

.gitlab-ci.yml

Add the job definition that is failing here

Actual behavior

Running the pipeline fail to find the solution because the build path on file system is ...\builds\12345678U\0

and NOT ...\builds\12345678\0 as expected

Expected behavior

Relevant logs and/or screenshots

job log

Add the job log

Environment description

config.toml contents

[[runners]]
  name = "MSBuild .NET NEW2"
  url = "https://xxxxx"
  id = 7535
  token = "glrt-12345678UQ3xMKbWcFqu"
  token_obtained_at = 2025-11-19T08:24:57Z
  token_expires_at = 0001-01-01T00:00:00Z
  executor = "shell"
  [runners.cache]
    MaxUploadedArchiveSize = 0
   
Add your configuration here

Used GitLab Runner version

Version: 18.3.1 Git revision: 5a021a1c Git branch: 18-3-stable GO version: go1.24.4 X:cacheprog Built: 2025-09-04T15:24:16Z OS/Arch: windows/amd64

and

Version: 15.11.0 Git revision: 436955cb Git branch: 15-11-stable GO version: go1.19.6 Built: 2023-04-21T20:32:42+0000 OS/Arch: windows/amd64

Possible fixes