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Error occurred when qwen3.5-27b invoking tool

Status: Open.

#117 In QwenLM/Qwen3.5;

· hxujal opened on Mar 31, 2026

Cannot disable Qwen3.5 reasoning output via Dify; reasoning process is in English by default

Status: Open.

#116 In QwenLM/Qwen3.5;

· xiaolvtongxue-zt opened on Mar 31, 2026

Qwen3.5-27B generates gibberish/repetitive loops with long context on vllm 0.17.0

Status: Open.

#115 In QwenLM/Qwen3.5;

· haomiemie opened on Mar 31, 2026

Proposal: new chat_template_arg enable_history_reasoning for reusing prompt cache among querys within Agents .

Status: Open.

#112 In QwenLM/Qwen3.5;

· Abioy opened on Mar 24, 2026

Unable to reproduce SWE-Bench Verified scores due to missing agent framework and max_turns configuration

Status: Open.

#110 In QwenLM/Qwen3.5;

· Hellozaq opened on Mar 23, 2026

SGlang run error: ValueError: Speculative decoding for Qwen3_5MoeForConditionalGeneration is not compatible with radix cache when using --mamba-scheduler-strategy no_buffer.

Status: Open.

#108 In QwenLM/Qwen3.5;

· yonghenglh6 opened on Mar 23, 2026

[Bug] Catastrophic gradient explosion (NaN) in RLHF with Qwen3.5 due to 3D position_ids forcing SDPA Math fallback and BF16 collapse

Status: Open.

#107 In QwenLM/Qwen3.5;

· ouroborosscr opened on Mar 22, 2026

[Bug] Flash Attention crashes with illegal memory access on Qwen3.5 due to 3D position_ids being misinterpreted as packed sequence

Status: Open.

#104 In QwenLM/Qwen3.5;

· ouroborosscr opened on Mar 21, 2026

[Bug] Chat interface corrupts Python code by injecting extra spaces before curly braces in f-strings

Status: Open.

#100 In QwenLM/Qwen3.5;

· pepeyc7526 opened on Mar 20, 2026

Keyword argument enable_thinking is not a valid argument for this processor and will be ignored

Status: Open.

#97 In QwenLM/Qwen3.5;

· SzhangS opened on Mar 18, 2026

The qwen3.5-397b-a17b-fp8 model experiences severe hallucinations when used with LangChain.

Status: Open.

#94 In QwenLM/Qwen3.5;

· xiaocode337317439 opened on Mar 17, 2026

# Qwen3.5-27B: Reasoning (<think>) reduced greatly when tools are present in the request

enhancementNew feature or requestNew feature or request

Status: Open.

#89 In QwenLM/Qwen3.5;

· Tyrannius opened on Mar 15, 2026