Combining AI and blockchain has been seen as a futuristic solution, promising decentralized and intelligent systems.When AI fails on the blockchain, the issue of responsibility becomes complex.The dream of merging AI with blockchain stems from the potential of processing data and ensuring transparency.However, practical implementation reveals challenges and flaws in the system.A scenario of a lending dApp using AI to assess borrowers highlights potential risks and errors in decision-making.In case of failures, accountability becomes a game of pass-the-buck between developers, AI providers, users, and the blockchain itself.Decentralized systems lack a clear entity to shoulder responsibility when failures occur.Lack of trust in AI systems complicates matters, especially in financial decision-making scenarios.The crux of failures lies in the design and integration of AI and blockchain systems, rather than the tools themselves.Legal and ethical implications arise when decentralized AI systems lead to discriminatory decisions without clear accountability.