Are you familiar with the hyphenation rules for Swedish (or for any foreign language at all)? It seems you are not. In some languages, diphthongs are doubled when a compound word is hyphenated.
Nothing unusual here, except for your observation that "when I select the language "English:USA" the same word hyphenated correctly" -- why would English hyphenation rules apply to Swedish!?
My concern is why one more "l" character is introduced at the end of yhe line when "Swedish" language selected. It was not seems in selecting "English:USA" language.
(Again (sigh).) Apparently, that's according to Swedish hyphenation rules.
It was not seems in selecting "English:USA" language.
Because (a) English hyphenation rules are different than Swedish hyphenation rules, and
(b) you should not test the result of English hyphenation with Swedish words.
If you don't talk Swedish, leave judging "correct" or "incorrect" hyphenation to someone who does.