I can't check your lies with Tim, Dave. Tim questions everything (mostly
irrelevant side issues) but doesn't form strong theories of his own
about anything.
However, firstly, thank you for finally attempting to articulate your
perceived "contradictions" here. That allows us to examine them and
check whether they are real.
> Omega just found out about the Doctor in T5D.
If that wasn't what the Doctor was called during Omega's time on
Gallifrey, how would Omega know it was the same person? That Omega
doesn't know the name "Doctor" means nothing.
And the Doctor's conscious memories of his distant past have been erased
(according to the Timeless Child narrative), so he doesn't remember his
distant past and working with Omega (except momentarily, in Remembrance
of the Daleks).
> Omga in T3D .
You mean Rassilon. Same logic applies.
> Neither noted an ancientness in the Doctor!
"They didn't note an ancientness in the Doctor?" This is your
"contradiction"? Where, in any of Doctor Who, is there note of an innate
sense of "ancientness" in Time Lords? And even if they had one, why
would they scrutinise the Doctor in that way if they did not suspect him
of being ancient?
Omega was barely present any more - a literal shadow of his former self.
And the presence of Rassilon in the Death Zone was an intelligent echo,
an AI interface like the TARDIS has, not Rassilon herself, who was long
dead.
Sorry Dave, that just won't wash. You wanting to find a contradiction is
not the same as there actually being one. Try again.