Current build: user-reported failure with NVIDIA 610.88

Evidence preserved on 17 September 2026, approximately 01:31 CEST, before any further player launch. The user played Builds/Windows-ForwardCandidate-20260916 for some time and reported another failure.

• Player.log identifies Unity 6000.3.24f1, the exact current candidate directory, normal threaded Direct3D 11, RTX 4060 Laptop GPU, and driver 32.0.16.1088 (610.88). This establishes the driver used by the failed process, separately from the current Windows installation state.
• The log records three loads of alps-02, Low quality, custom fir billboards, and initially Rain / weather seed 9909140. It contains no recorded Forward or reduced-effects override. The candidate supports both paths but normal launches retain Deferred; its folder name does not establish effective Forward rendering in this manual run.
• The first GPU errors are 0x887A0005 texture/buffer creation failures, followed by repeated Graphics.CopyTexture failures. These messages after device loss do not identify the resource or command that caused the hang.
• Windows records the first new NVIDIA reset at 01:29:52.363 CEST, with UCodeReset TDR occurred on GPUID:100. See the independent OS evidence. The boot session did not change. Driver 610.88 is independently reported by the active NVIDIA driver query.
• Eighteen automatically generated bike incident files were copied into diagnostics/; their compact index is incident-summary.json. These are physics/contact histories, not GPU crash dumps or a continuous rendering flight recorder. They identify candidate build GUID 863b7c4dc60d4b53971aa9bc445b51e2. The final race's samples continue after the Windows reset; continued CPU simulation does not establish GPU recovery.

Result: the driver change did not fix this observed failure. This manual run was not the planned matched full-effects Forward test and is not a measurement of relative failure rates between drivers. The exact visible symptom and manual launch method are pending the user's clarification.

The old C:/Unity Projects/Rampage66 content is excluded from the next engine comparison. current-content-snapshot.json records 1,116 byte-verified copies of the current project's Assets, Packages and ProjectSettings before migration. The new isolated copy is Tools/Diagnostics/CurrentContentUnity66-20260917. Engine/package migration and required API ports are recorded separately; no source assets are taken from the old project and no upgrade is yet a confirmed repair.