Cannot open old chat session.

Type: Bug

In the SESSIONS panel, I see an old chat, but both "Open as Editor" and double-clicking always open a new chat.

VS Code version: Code 1.133.0 (a5b500951314efd502d07465bd138dfbd714a960, 2026-08-11T22:14:08Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) Ultra 7 265H (16 x 3686)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x8086, DEVICE=0x7d51 [Intel(R) Arc(TM) Pro 140T GPU (16GB)], DRIVER_VENDOR=Intel, DRIVER_VERSION=32.0.101.8132 *ACTIVE*
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
Machine model name:
Machine model version:
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
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|31.46GB (16.46GB free)|
|Process Argv|--crash-reporter-id b0e336a4-58b8-4d85-a5bc-266990a5799b|
|Screen Reader|no|
|VM|67%|
Extensions (21)

Name|Identifier|Author|Version
---|---|---|---
Markdown Preview Mermaid Support|bierner.markdown-mermaid|bierner|1.32.1
esbuild Problem Matchers|connor4312.esbuild-problem-matchers|connor4312|0.0.3
ESLint|dbaeumer.vscode-eslint|dbaeumer|3.0.34
ResX Editor|dominicvonk.vscode-resx-editor|DominicVonk|0.0.5
XML Tools|dotjoshjohnson.xml|DotJoshJohnson|2.5.1
Dprint Code Formatter|dprint.dprint|dprint|0.17.2
GitLens — Git supercharged|eamodio.gitlens|eamodio|18.3.0
Prettier - Code formatter|esbenp.prettier-vscode|esbenp|12.4.0
Jest / Vitest Runner|firsttris.vscode-jest-runner|firsttris|0.4.148
Git Graph|mhutchie.git-graph|mhutchie|1.30.0
C# Dev Kit|ms-dotnettools.csdevkit|ms-dotnettools|3.20.199
C#|ms-dotnettools.csharp|ms-dotnettools|2.140.9
.NET Install Tool|ms-dotnettools.vscode-dotnet-runtime|ms-dotnettools|3.1.0
Extension Test Runner|ms-vscode.extension-test-runner|ms-vscode|0.0.14
PowerShell|ms-vscode.powershell|ms-vscode|2025.4.0
JavaScript and TypeScript Nightly|ms-vscode.vscode-typescript-next|ms-vscode|6.0.20260416
Nx Console|nrwl.angular-console|nrwl|18.101.1
Codex – OpenAI’s coding agent|openai.chatgpt|openai|26.803.61601
NuGet Gallery|patcx.vscode-nuget-gallery|patcx|1.2.6
XML|redhat.vscode-xml|redhat|0.29.3
YAML|redhat.vscode-yaml|redhat|1.24.0

A/B Experiments

```
vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
envsactivate1:31551504
gh487529:31544284
cloudbuttont:31379625
3efgi100_wstrepl:31403338
bj468946:31457056
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
8hhj4413:31478653
ge8j1254_inline_auto_hint_haiku:31490510
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
c9b86496:31447327
control_6dc23131:31555649
ei9d7968:31496641
nes-extended-on:31455476
chat:31457767
8hig5102:31480529
ah:31461780
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
ghj88844:31499326
ddid_c:31478207
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
jh5f2457_c:31540921
g4a0e106:31529594
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
jf4hg949:31526829
ahp-both-windows:31556933
sessions_3:31532893
ihg5j128:31534457
f412h606:31551416
7g2b5551:31542111
5fe6f778:31554331
allow-none:31555437
6i51c363:31551401
ac562147:31564510
c7c27ce7:31554789
1h923230:31564177
1532g621_copy:31554320
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
switchtoauto:31559321
ig31j696:31564790
vrbsty_fls:31561059
session-archive:31558132
5b8j3302:31564601

```