switchboard doesn`t start ndisplay

hello everyone!
trying to start nDisplay via switchboard for a couple of days, but got this bug report :
LogWindows: error: appError called: Assertion failed: Pair != nullptr [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 671]

Please help, don`t know where should I resolve this problem

Well, it seems that I used non english letters in my path. Changed to “my documents” and it started fine