Sign-in Issue: "NativeAuthError: Unexpected: (pii)" after Update

[Acindarax]

Type: Bug

After updating VSCode (Version 1.97), I was logged out of my Microsoft account. When I tried to sign back in, it kept prompting me for both email and password multiple times, then failed with the error:

NativeAuthError: Unexpected: (pii)

I tried:

• Restarting VSCode
• Clearing authentication sessions
• Running with extensions disabled
• Deleting stored credentials
• Running as Administrator

None of these worked. However, rolling back to Version 1.96 solved the problem.

System Info:

• OS: (Windows 10)
• VSCode Version: 1.97(bug present) / 1.96 (working)
• Installed Extensions: (If relevant)

Please look into this issue, as it seems to be a bug in the latest update!

VS Code version: Code 1.96.4 (cd4ee3b, 2025-01-16T00:16:19.038Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 3 2200U with Radeon Vega Mobile Gfx (4 x 2495)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	14.93GB (4.80GB free)
Process Argv	--crash-reporter-id b888a54b-445c-4cec-b9cd-1f09fef78962
Screen Reader	no
VM	0%

Extensions (94)

Extension	Author (truncated)	Version
python-image-preview	076	0.1.2
better-comments	aar	3.0.2
csharp-to-typescript	adr	1.12.1
namespace	adr	1.1.2
node-essentials	afr	1.1.0
project-manager	ale	12.8.0
vscode-angular2-files	ale	1.6.4
ng-template	Ang	19.0.4
pythoncpp-debug	ben	0.3.0
node-json-autocomplete	bhs	0.1.3
vscode-intelephense-client	bme	1.12.6
vsc-postman	bre	1.1.0
npm-intellisense	chr	1.4.5
path-intellisense	chr	2.10.0
gitignore	cod	0.9.0
dbclient-jdbc	cwe	1.3.9
vscode-es-client2	cwe	8.1.4
vscode-mysql-client2	cwe	8.1.4
vscode-markdownlint	Dav	0.58.2
vscode-elasticsearch-snippets	dee	1.1.0
git-extension-pack	don	0.1.3
githistory	don	0.6.20
python-environment-manager	don	1.2.7
xml	Dot	2.5.1
postman-generator	dwa	0.0.1
gitlens	eam	16.2.2
chatgpt-gpt4-gpt3-vscode	Eas	1.5.37
vscode-html-css	ecm	2.0.13
vscode-postman	eri	2.1.0
prettier-vscode	esb	11.0.0
ghost-text	fre	1.4.1
vscode-pull-request-github	Git	0.102.0
rest-client	hum	0.25.1
node-developer	ken	0.4.0
csharpextensions	kre	1.7.3
node-module-intellisense	lei	1.5.0
java-spring-extension-pack	loi	0.2.3
python-path	mge	0.0.14
vscode-language-babel	mgm	0.0.40
git-graph	mhu	1.30.0
r	Mik	0.0.32
vscode-exec-node	mir	0.5.6
vscode-docker	ms-	1.29.4
csdevkit	ms-	1.16.6
csharp	ms-	2.63.32
vscode-dotnet-pack	ms-	1.0.13
vscode-dotnet-runtime	ms-	2.2.6
vscodeintellicode-csharp	ms-	2.2.3
debugpy	ms-	2025.0.0
python	ms-	2025.0.0
vscode-pylance	ms-	2025.2.1
remote-wsl	ms-	0.88.5
cpptools	ms-	1.23.6
cpptools-extension-pack	ms-	1.3.0
live-server	ms-	0.4.15
powershell	ms-	2025.0.0
vscode-typescript-next	ms-	5.8.20250206
sqltools	mtx	0.28.3
sqltools-driver-mysql	mtx	0.6.3
indent-rainbow	ode	8.3.1
oracle-java	Ora	23.0.1
vscode-versionlens	pfl	1.16.2
postman-for-vscode	Pos	1.7.0
r-debugger	RDe	0.5.5
java	red	1.39.0
r	REd	2.8.4
c-sharp-utilities	rev	1.12.5
elastic	ria	0.13.3
csharp-helper	roa	0.0.14
mongo-snippets-for-node-js	roe	1.3.12
docx-to-pdf	Sha	0.0.2
vscode-checkstyle	she	1.4.2
spring-code-generator	Son	1.1.0
sonarlint-vscode	Son	4.15.0
node-pack	Swe	0.1.16
pdf	tom	1.2.2
python-extended-snippets	tus	0.0.1
intellicode-api-usage-examples	Vis	0.2.9
vscodeintellicode	Vis	1.3.2
vscode-boot-dev-pack	vmw	0.2.2
vscode-spring-boot	vmw	1.60.0
vscode-gradle	vsc	3.16.4
vscode-java-debug	vsc	0.58.1
vscode-java-dependency	vsc	0.24.1
vscode-java-pack	vsc	0.29.0
vscode-java-test	vsc	0.43.0
vscode-maven	vsc	0.44.0
vscode-spring-boot-dashboard	vsc	0.14.0
vscode-spring-initializr	vsc	0.11.2
quick-python-print	Wei	0.3.1
vscode-import-cost	wix	3.3.0
Live-Postman	wyc	1.0.1
livecode	xir	1.3.10
vscode-open-in-github	ziy	1.3.6

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805:30301674
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
2i9eh265:30646982
962ge761:30959799
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
cppperfnew:31000557
dwnewjupyter:31046869
nativerepl2:31139839
pythonrstrctxt:31112756
nativeloc1:31192215
iacca1:31171482
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530
6074i472:31201624
8did9651:31230678
9064b325:31222308
copilot_t_ci:31222730

[TylerLeonhardt]

What feature or extension triggered the login?

As a workaround, you change the setting

"microsoft-authentication.implementation": "classic"

But this won't be along forever so we should get to the bottom of this