ESR meter & G07 question

Kalamath

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I'm recapping a board right now, and first went though with my Atlas ESR-70 to check all the caps. I marked all the ones that were 10%+ out of spec, and any that came up "in circuit-leaky".

For the most part, they all test the same after I pull them, but just now I got one (C403) that tested "leaky" on board, yet fine once pulled. The new cap likewise is testing "leaky" once on board. Why is that?
 
Electricity follows the path of least resistance and there is another less resistance path that the meter is reading and why they test good out of circuit.

Andrew
 
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