When "Yes" Means Nothing: An LLM’s Catastrophic Failure to Isolate a Localization Bug

&#xA; The following is a short case study in LLM limitations, by me, a deeply unimpressed software engineer. It was tested with DeepSeek-R1, but the flaws exposed appear in all LLM that I use every day. I'm sick of it, and I had to write it down somewhere. &#xA; &#xA; I tasked an LLM (DeepSeek-R1) to act as a debugging oracle--an 'Akinator for code bugs.' The rules were simple: It asks me yes/no…