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Dedicated LocalBackend vLLM server can become unreachable during LoRA adapter reload

Status: Open.

#678 In OpenPipe/ART;

· arcticfly opened on May 12, 2026

Regression: forked GRPO run can produce malformed checkpoint outputs on newer ART ref

bugSomething isn't workingSomething isn't working

Status: Open.

#672 In OpenPipe/ART;

· arcticfly opened on May 8, 2026

LoRA adapters are not properly syncing when using LocalBackend - stale adapters are being used in rollouts

Status: Open.

#661 In OpenPipe/ART;

· gmanlan opened on Apr 24, 2026

LocalBackend fork_checkpoint doesn't update vLLM's initial LoRA

Status: Open.

#651 In OpenPipe/ART;

· arcticfly opened on Apr 13, 2026

Add from_entity parameter to _experimental_fork_checkpoint

Status: Open.

#649 In OpenPipe/ART;

· arcticfly opened on Apr 10, 2026

auto_rl example uses

Status: Open.

#641 In OpenPipe/ART;

· joshuajnoble opened on Apr 3, 2026

ServerlessBackend creates a new W&B run per training step, causing "Run finished" alerts to fire on every step

Status: Open.

#638 In OpenPipe/ART;

· go5paopao opened on Apr 2, 2026

[Security] Hardcoded API Key in vLLM Server Configuration Allows Authentication Bypass

Status: Open.

#628 In OpenPipe/ART;

· YLChen-007 opened on Mar 23, 2026

Running out of memory with version v0.5.17

Status: Open.

#617 In OpenPipe/ART;

· Aleksis99 opened on Mar 16, 2026

Training only processes one trajectory at a time?

questionFurther information is requestedFurther information is requested

Status: Open.

#533 In OpenPipe/ART;

· junfengzh opened on Jan 25, 2026

RFC: Deprecate allow_training_without_logprobs option

discussion

Status: Open.

#528 In OpenPipe/ART;

· corbt opened on Jan 21, 2026

W&B offline

questionFurther information is requestedFurther information is requested

Status: Open.

#493 In OpenPipe/ART;

· manglu097 opened on Dec 19, 2025