"I am being allowed to give multiple files in the browser the same exact name without any appendages. "
the browser behaviour isn't like finder behaviour as far as names go.
and it;s probably not a great idea to have different clips with the same name.
i take it you are changing them back?
are the clip names incremented before you re-name them?
reel numbers incrementing?
that's a sure sign of TC break behaviour.
nick