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seriously, look at the photo again, your film isn't flipped over
This is a photo from the guide I linked to some posts above.
It shows a full canister (on the left), leader cut off, and a receiving canister (bit of film sticking out (on the right).
Both films are taped together as you can see. In daylight, which makes it well less of a faff.Now it will be wound from the left roll to the right one in a changing bag.
This will give you a roll of flipped film in the right canister.Seriously.
Good luck, but seriously, look at the photo again, your film isn't flipped over. You've wound it into another canister the same way up.
Need the glossy side down and matt side up