I suggest you read some history on the formation of the canon. It's not as clear as you suggest.
Both contain all the deuterocanonicals, without any distinction, and are identical with the catalogue of Trent.
Yet not recognized dogmatically by Rome until Trent.
However they were not recognized by the early ekklesia.
Formal "Dogmatization" of any article of the faith generally doesn't happen unless dissent and controversy are threatening the unity of the Church.
If the identical same catalogue of books (canon) documented to be extant in 382 AD, 405 AD, all the way through 1546 AD (Trent) and continuing to 2018 AD (now) --- that is, 1600+ years of continuity --- is considered unsettled, it's you who have a problem.
But tell me, because I'd really like to know: who authorized the 16th century revised (or, as you might say, "reformed") canon used by your denomination? What person or group of persons by name? What year or even decade, by date? I'd like to look up these gentlemen and check out by what authority, or what qualifications, they claimed the right to determine the Scriptural canon.