Deepseek harness is kind of weak with MCP?

Has anyone tried reverse engineering with Deepseek v4.1 Flash on the official harness? whenever i try to use it with IDA pro or x64dbg MCPs, it acts really abnormal, cannot uses them the right way, either crash them or think they don't work, on the other hand claude able to handle these MCPs really well no complaints. do you have any suggestion, will using it on reasonix or similar tools will make any difference? recommend one please