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Other models are working fine in agent mode, but claude sonnet 4 has unexpectedly started returning error code 403 #255068

Closed as not planned
@NekshaDeSilva

Description

@NekshaDeSilva

Type: Bug

Sorry, your request failed. Please try again. Request id: 48603613-2f2d-4217-99f7-096737173acd

Reason: token expired or invalid: 403

Extension version: 0.28.5
VS Code version: Code 1.101.2 (2901c5a, 2025-06-24T20:27:15.391Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info
Item Value
CPUs Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz (4 x 1696)
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) 3.91GB (0.60GB free)
Process Argv --crash-reporter-id 806fa492-6856-4134-b754-5cee430173d7
Screen Reader no
VM 0%
A/B Experiments
vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492cf:30256860
binariesv615:30325510
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
h48ei257:31000450
cppperfnew:31000557
dwnewjupyter:31046869
nativeloc1:31344060
5fd0e150:31155592
dwcopilot:31170013
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
9064b325:31222308
copilot_t_ci:31333650
e5gg6876:31282496
pythoneinst12:31285622
4gafe986:31271826
c7cif404:31314491
pythonpulldiag:31343502
996jf627:31283433
pythonrdcb7:31342333
usemplatestapi:31297334
0aa6g176:31307128
7bj51361:31289155
747dc170:31275177
aj953862:31281341
generatesymbolt:31295002
convertfstringf:31295003
j6a0c355:31339598
c4b42873:31341128
d7aab740:31338110
usemarketplace:31343026
nesew2to5:31336538
agentclaude:31335815
mytest:31335657
nes-diff-11:31337487
6abeh943:31336334
yijiwantestdri0626-c:31336931
4gdec884:31342391

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