C# language crash while working with Claude within VS code

[Second338]

Type: Bug

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Extension version: 2.140.9
VS Code version: Code 1.127.0 (4fe60c8b1cdac1c4c174f2fb180d0d758272d713, 2026-06-30T10:52:33+02:00)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (8 x 1992)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0x5917 [Intel(R) UHD Graphics 620], DRIVER_VENDOR=Intel, DRIVER_VERSION=31.0.101.2140 ACTIVE GPU1: VENDOR= 0x10de, DEVICE=0x1d10 [NVIDIA GeForce MX150], DRIVER_VERSION=31.0.15.5186 GPU2: VENDOR= 0x8086, DEVICE=0x5917 [Intel(R) UHD Graphics 620], DRIVER_VERSION=31.0.101.2140 GPU3: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8737 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)	7.88GB (1.00GB free)
Process Argv	C:\Users\Owner\my-projects.code-workspace --crash-reporter-id c94a1885-2795-41b1-accc-f63d442072ec
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
pythonvspyt551:31249599
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
6abeh943:31336334
envsactivate1:31538736
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
38bie571_auto:31426784
cp_cls_t_1081:31454832
conptydll_true:31498968
ia-use-proxy-models-svc:31452481
e9c30283:31461165
test_treatment2:31471001
c9b86496:31447327
capi_bxe_098a3278:31544980
idci7584:31464702
e3e4d672:31494082
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
7e187181:31503455
i2gc6536:31499202
52612955:31516516
ghj88844:31499326
23c7c724:31520045
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
b1ei0813:31506238
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
f9bf7985:31543584
2cfga817_c:31522397
jh5f2457_c:31540921
8hfba999:31537718
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31533504
jf4hg949:31526829
nes-curr-leftover-1500:31538366
h561g132:31533256
sessions_5:31532894
h7dd7680:31543284
ihg5j128:31534457
jh7i3328:31546038
7g2b5551:31542111
nes-ex-cf-euporie-03:31542868

[dotnet-policy-service]

If you are running into problems, please open a new issue and provide the requested information. Thanks!