In uk.railway Charles Ellson twisted the electrons to say:
ISTR that was featured WRT the Master's Tardis which did function
properly in that department.

nods As did the Rani's TARDIS. IIRC, in one of the Colin Baker
stories the Doctor had a go at fixing the Chameleon Circuit - which
resulted in his TARDIS changing appearance each time it landed, but not
to something that fitted in with the environment any better than a police
box?
--
These opinions might not even be mine ...
Let alone connected with my employer ...