In this snippet in EXITRUN/ evaluate():

for (Bar=X; Bar<Y; Bar++) {
watch("! tod=", tod(0), priceC(0) );
}
the returned close price IS changing in line with changing Bar, but not tod.

This looks inconsistent.

for (Bar=X; Bar<Y; Bar++) {
int bOff = NumBars-1 - Bar;

watch("! ltod=", ltod(ET, bOff) );
}

doesn't work either.

https://zorro-project.com/manual/en/numbars.htm

Bar is the current bar index. Overwriting the current bar index is probably no good idea.

All price and time functions have offset parameters.

I am not 'overwriting' the current bar index. I am going through Bars manually once again in EXITRUN (i recall manual mentions such possibility of manually changing the Bar index; and it works).

All price and time functions have offset parameters. - Right. And - as expected - priceClose(0) does return the close price of the set Bar, but neither tod(0) nor tod(NumBars-1-Bar) do.