Application does not allow for the selection of a path and therefore a disk image file

On Linux Fedora 28, launch file unetbootin-linux64-661.bin downloaded from http://unetbootin.github.io/linux_download.html.

Description: Application does not allow for the selection of a path and therefore a disk image file. Clicking link Select disk image file produces errors messages. Also each time an attempt to select a file occurs, four duplicates of pattern 'QPixmap::scaleWidth: Pixmap is a null pixmap' are produced.

Actual result in terminal:
[user@localhost ~]$ sudo QT_X11_NO_MITSHM=1 /home/user/unetbootin-linux64-661.bin
Unable to load library icui18n "Cannot load library icui18n: (icui18n: cannot open shared object file: No such file or directory)"
QPixmap::scaleWidth: Pixmap is a null pixmap
QPixmap::scaleWidth: Pixmap is a null pixmap
QPixmap::scaleWidth: Pixmap is a null pixmap
QPixmap::scaleWidth: Pixmap is a null pixmap

Attachment: No path can be manually selected, be it from left panel or from expanded list.

Additional information:
$ uname -r
4.17.14-202.fc28.x86_64