I'm not sure that is true. To my mind, you either remember, or you don't - anything else is guess work.
As Jane would have no idea where Jez was going when she saw him, there should be no logic clash regarding his direction
There is only a clash if she is trying to reconcile something she saw with something she has been told, which doesn't make for an accurate witness statement.
Thanks Jassi, that is a fair challenge. I was trying to think when it would have been she first started to be aware that Jez was on his way back to the apartment.
Like very early on she deduced Gerry had already seen the kids, and that was without being told. So does she go around working out what people are doing, like a teacher might.
That is still a memory, it might not be memory for the perfect witness statement.
Hence she kicked herself for not working out what Tannerman was doing. She makes some deductions like Tannerman is not a tourist - it was a girl, an unconscious child. These aren't real observations but deductions (you can train yourself to be like this when practicing defensive driving, when working out what other drivers might be doing).