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[Bug] alpamayo1_5 driver crashes with RuntimeError: cu_seqlens_q must have shape (batch_size + 1)

Status: Open.

#95 In NVlabs/alpasim;

· dennisdarrow opened on May 28, 2026

public_2507 scene fails during NRE backend creation with unexpected dynamic_rigids key

Status: Open.

#88 In NVlabs/alpasim;

· Masakichi210 opened on May 26, 2026

NRend + dynamic objects incompatible on NRE 26.02 (tracks_poses_start size error)

Status: Open.

#85 In NVlabs/alpasim;

· cheundw-dot opened on May 8, 2026

ValueError: <|route_start|> not found in input_ids when enabling use_classifier_free_guidance_nav for Alpamayo 1.5

Status: Open.

#74 In NVlabs/alpasim;

· SunYuanYuan19 opened on Apr 26, 2026

How to run NRE sensorsim without Docker? (Kubernetes GPU-as-a-Service environment)

Status: Open.

#72 In NVlabs/alpasim;

· crom592 opened on Apr 17, 2026

Inconsistent BEV lane semantics causing incorrect offroad detection (dashed/solid line misclassification)

Status: Open.

#61 In NVlabs/alpasim;

· moonzerokevin opened on Mar 26, 2026

Error rendering frames with reasoning overlay

githubSo we can see in linear which issues come from github.So we can see in linear which issues come from github.

Status: Open.

#55 In NVlabs/alpasim;

· sandorplosz opened on Mar 19, 2026

[Alpamayo 1 Critical VLA Alignment Failure: Reasoning & Trajectory Heads Decoupled

Status: Open.

#20 In NVlabs/alpasim;

· dennisdarrow opened on Jan 20, 2026

Could you check when sensorsim image support for Blackwell ?

Status: Open.

#17 In NVlabs/alpasim;

· chocwjc opened on Jan 9, 2026