i am seeing the conversion of T, but i cannot get C converted to lower case
is there anything "odd" about your system? any extra stable include directories for example? if you move the caret so it is next to "t" and "c" does the wizard bar give any clues as to where these suggestions came from?
first i tried it in an existing project, and then i created a new C++ console application, and tried it in there. in both cases i only get the 'T' to 't' repair case.
my best guess is that 'C' to 'c' is related to a definition in one of the stable include directories you have that i do not have.