QA failure: qa/specs/features/browser_ui/9_tenant_scale/project/add_project_member_spec.rb
## Overview
* Environment: gstg-cny
* Coordinated pipeline: https://ops.gitlab.net/gitlab-org/release/tools/-/pipelines/6122086
* Auto-deploy package: 19.4.202608211707-36c18610d8e.e6be86e37cf
### Pipeline:
* **https://ops.gitlab.net/gitlab-org/quality/staging-canary/-/jobs/26179787**
```
2026-08-21T19:18:13.562506Z 01O
2026-08-21T19:18:13.562509Z 01O 1) Tenant Scale Project Member adds a project member
2026-08-21T19:18:13.562557Z 01O [31mFailure/Error: project = create(:project, name: 'add-member-project')[0m
2026-08-21T19:18:13.562559Z 01O [31m[0m
2026-08-21T19:18:13.562562Z 01O [31mQA::Resource::Errors::ResourceFabricationFailedError:[0m
2026-08-21T19:18:13.562564Z 01O [31m Fabrication of QA::Resource::Project using the API failed (400) with `{"message":{"base":["14:connections to all backends failing; last error: UNKNOWN: ipv4:10.224.13.54:8075: Failed to connect to remote host: Connection refused. debug_error_string:{UNAVAILABLE:connections to all backends failing; last error: UNKNOWN: ipv4:10.224.13.54:8075: Failed to connect to remote host: Connection refused}"]}}`.[0m
2026-08-21T19:18:13.562566Z 01O [31m Correlation Id: a2ebfb6aef1103b6-ATL[0m
2026-08-21T19:18:13.562568Z 01O [31m Sentry Url: https://new-sentry.gitlab.net/organizations/gitlab/issues/?environment=gstg&project=3&query=correlation_id%3A%22a2ebfb6aef1103b6-ATL%22[0m
2026-08-21T19:18:13.562570Z 01O [31m Kibana - Discover Url: https://nonprod-log.gitlab.net/app/discover#/?_a=%28index:%27ed942d00-5186-11ea-ad8a-f3610a492295%27%2Cquery%3A%28language%3Akuery%2Cquery%3A%27json.correlation_id%20%3A%20%22a2ebfb6aef1103b6-ATL%22%27%29%29&_g=%28time%3A%28from%3A%272026-08-20T19:18:12.894Z%27%2Cto%3A%272026-08-21T19:18:12.895Z%27%29%29[0m
2026-08-21T19:18:13.562573Z 01O [31m Kibana - Dashboard Url: https://nonprod-log.gitlab.net/app/dashboards#/view/b74dc030-6f56-11ed-9af2-6131f0ee4ce6?_g=%28time%3A%28from:%272026-08-20T19:18:12.895Z%27%2Cto%3A%272026-08-21T19:18:12.895Z%27%29%29&_a=%28filters%3A%21%28%28query%3A%28match_phrase%3A%28json.correlation_id%3A%27a2ebfb6aef1103b6-ATL%27%29%29%29%29%29[0m
2026-08-21T19:18:13.562575Z 01O [36m# ./qa/resource/api_fabricator.rb:134:in `api_post_to'[0m
2026-08-21T19:18:13.562578Z 01O [36m# ./qa/resource/api_fabricator.rb:108:in `api_post'[0m
2026-08-21T19:18:13.562582Z 01O [36m# ./qa/resource/api_fabricator.rb:27:in `fabricate_via_api!'[0m
2026-08-21T19:18:13.562584Z 01O [36m# ./qa/resource/project.rb:126:in `rescue in fabricate_via_api!'[0m
2026-08-21T19:18:13.562586Z 01O [36m# ./qa/resource/project.rb:123:in `fabricate_via_api!'[0m
2026-08-21T19:18:13.562588Z 01O [36m# ./qa/resource/base.rb:74:in `block (2 levels) in fabricate_via_api!'[0m
2026-08-21T19:18:13.562590Z 01O [36m# ./qa/resource/base.rb:117:in `log_and_record_fabrication'[0m
2026-08-21T19:18:13.562592Z 01O [36m# ./qa/resource/base.rb:74:in `block in fabricate_via_api!'[0m
2026-08-21T19:18:13.562594Z 01O [36m# ./qa/resource/base.rb:107:in `do_fabricate!'[0m
2026-08-21T19:18:13.562596Z 01O [36m# ./qa/resource/base.rb:73:in `fabricate_via_api!'[0m
2026-08-21T19:18:13.562599Z 01O [36m# ./qa/factories/_shared.rb:6:in `block (2 levels) in <module:QA>'[0m
2026-08-21T19:18:13.562601Z 01O [36m# ./qa/specs/features/browser_ui/9_tenant_scale/project/add_project_member_spec.rb:11:in `block (3 levels) in <module:QA>'[0m
2026-08-21T19:18:13.562603Z 01O [36m# /home/gitlab/spec/support/fast_quarantine.rb:22:in `block (2 levels) in <top (required)>'[0m
2026-08-21T19:18:13.562605Z 01O [36m# ./qa/specs/runner.rb:124:in `run_rspec'[0m
2026-08-21T19:18:13.562607Z 01O [36m# ./qa/specs/runner.rb:32:in `perform'[0m
2026-08-21T19:18:13.562609Z 01O [36m# ./qa/scenario/template.rb:10:in `block in perform'[0m
2026-08-21T19:18:13.562611Z 01O [36m# ./qa/scenario/template.rb:8:in `perform'[0m
2026-08-21T19:18:13.562615Z 01O [36m# ./qa/scenario/template.rb:63:in `perform'[0m
2026-08-21T19:18:13.562617Z 01O [36m# ./qa/scenario/template.rb:10:in `block in perform'[0m
2026-08-21T19:18:13.562620Z 01O [36m# ./qa/scenario/template.rb:8:in `perform'[0m
2026-08-21T19:18:13.562622Z 01O [36m# ./qa/scenario/bootable.rb:52:in `launch!'[0m
2026-08-21T19:18:13.562624Z 01O [36m# ------------------[0m
2026-08-21T19:18:13.562626Z 01O [36m# --- Caused by: ---[0m
2026-08-21T19:18:13.562628Z 01O [36m# QA::Resource::Errors::ResourceNotFoundError:[0m
2026-08-21T19:18:13.562630Z 01O [36m# Resource at https://staging.gitlab.com/api/v4/projects/gitlab-e2e-sandbox-group-2%2Fe2e-test-2026-08-21-19-18-07-e9e074d11584fe56%2Fadd-member-project-1b5459e53fabf6d5?private_token=[MASKED] could not be found (404): `{"message":"404 Project Not Found"}`.[0m
2026-08-21T19:18:13.562632Z 01O [36m# Correlation Id: a2ebfb69fcc9bf84-ATL[0m
2026-08-21T19:18:13.562634Z 01O [36m# Sentry Url: https://new-sentry.gitlab.net/organizations/gitlab/issues/?environment=gstg&project=3&query=correlation_id%3A%22a2ebfb69fcc9bf84-ATL%22[0m
2026-08-21T19:18:13.562636Z 01O [36m# Kibana - Discover Url: https://nonprod-log.gitlab.net/app/discover#/?_a=%28index:%27ed942d00-5186-11ea-ad8a-f3610a492295%27%2Cquery%3A%28language%3Akuery%2Cquery%3A%27json.correlation_id%20%3A%20%22a2ebfb69fcc9bf84-ATL%22%27%29%29&_g=%28time%3A%28from%3A%272026-08-20T19:18:10.343Z%27%2Cto%3A%272026-08-21T19:18:10.343Z%27%29%29[0m
2026-08-21T19:18:13.562638Z 01O [36m# Kibana - Dashboard Url: https://nonprod-log.gitlab.net/app/dashboards#/view/b74dc030-6f56-11ed-9af2-6131f0ee4ce6?_g=%28time%3A%28from:%272026-08-20T19:18:10.343Z%27%2Cto%3A%272026-08-21T19:18:10.343Z%27%29%29&_a=%28filters%3A%21%28%28query%3A%28match_phrase%3A%28json.correlation_id%3A%27a2ebfb69fcc9bf84-ATL%27%29%29%29%29%29[0m
2026-08-21T19:18:13.562640Z 01O [36m# ./qa/resource/api_fabricator.rb:93:in `api_get_from'[0m
2026-08-21T19:18:13.562643Z 01O
2026-08-21T19:18:13.562645Z 01O Finished in 27.14 seconds (files took 1.05 seconds to load)
2026-08-21T19:18:13.922592Z 01E /builds/gitlab-org/quality/staging-canary/.gems/bin/gitlab-qa: Command `docker run -t --rm --net=bridge --env QA_CAN_TEST_GIT_PROTOCOL_V2="$QA_CAN_TEST_GIT_PROTOCOL_V2" ...` failed! [31m✘[0m (Gitlab::QA::Support::ShellCommand::StatusError)
2026-08-21T19:18:13.922635Z 01E /builds/gitlab-org/quality/staging-canary/.gems/bin/gitlab-qa: Command `docker run -t --rm --net=bridge --env QA_CAN_TEST_GIT_PROTOCOL_V2="$QA_CAN_TEST_GIT_PROTOCOL_V2" ...` failed! [31m✘[0m (Gitlab::QA::Support::ShellCommand::StatusError)
2026-08-21T19:18:13.923031Z 01O [31m1 example, 1 failure[0m
2026-08-21T19:18:13.923039Z 01O
2026-08-21T19:18:13.923041Z 01O Failed examples:
2026-08-21T19:18:13.923048Z 01O
2026-08-21T19:18:13.923051Z 01O [31mrspec ./qa/specs/features/browser_ui/9_tenant_scale/project/add_project_member_spec.rb:6[0m [36m# Tenant Scale Project Member adds a project member[0m
2026-08-21T19:18:13.923053Z 01O
2026-08-21T19:18:13.923056Z 01O
```
issue
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