I've found the vscode copilot error "No lowest priority node found" to be about a context overflow somewhere in the chain "inference engine" -> "LLM" -> copilot. Some/all of the workarounds you can try when that happens: Reduce/disable agent tools Increase the input window in chatLanguageModels.json, eg. { "id": "gemma-4-12b-it-qat-q4_0", "name": "gemma-4-12b-it-qat-q4_0", "url": "http://localhost:11434", "toolCalling": … Continue reading VScode copilot: No lowest priority node found →