@VanBreuk thanks for confirming that UTF8 is accepted fine.
I tried adding spaces and line feeds to my secret phrase, no luck. Btw, adding line feeds doesn't change wallet id, so, looks like some of characters get erased.
I played with many characters from both ends of the string, spent may be an hour with all sorts of combinations, still no luck
Could you please send a link to the source code, I would love to check this part of the code, and see how string gets converted to wallet id.
@high110 ok, so I am not alone with this problem, then this is something more systematic, but let's see if we get more people with loosing access to their wallet

and looks like we have lost our money forever. No one will be able to help us here ;(