Two different variables
One tracks the last few sessions; the other tracks everything since the high.
Intuitive caution is a response to recent experience, and it has to be, because that is what an operator has direct access to. The last three sessions are remembered as episodes, with the specific trades and the specific moments attached. Cumulative drawdown is an accounting fact spanning weeks or months, held in a number rather than in memory. So the two quantities are computed over different windows from different material, and there is no particular reason for them to agree. What makes this more than an academic observation is that they disagree in a patterned way rather than randomly, and the pattern is unfavourable.
Schematic. In both cases the account is deep below its peak. The gate is unmoved by the week; felt caution is almost entirely determined by it — and the right-hand pair is where an operator sizes up while the damage is unrepaired.

