Dumps the core with brute force scan

[Uqbar]

Started the program, selected the brute force scan and got the core dump I attach.
It happens always.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: btscanner 2.1-5.1build1
ProcVersionSignature: Ubuntu 4.4.0-38.57-lowlatency 4.4.19
Uname: Linux 4.4.0-38-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Nov 10 09:57:55 2016
SourcePackage: btscanner
UpgradeStatus: No upgrade log present (probably fresh install)

[Pander (pander)]

Same here for Ubuntu 17.04. Also there is no proper upstream website to be found.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Pander (pander)]

In the terminal, you see this:

                                                                                                                                                                                      7f568589b000-7f568589f000 r--p 00024000 fd:01 6424156 /lib/x86_64-linux-gnu/libtinfo.so.5.9
                                                                                 7f568589f000-7f56858a0000 rw-p 00028000 fd:01 6424156 /lib/x86_64-linux-gnu/libtinfo.so.5.9
                                                                                                                                                                                               7f56858a0000-7f56858c1000 r-xp 00000000 fd:01 6422951 /lib/x86_64-linux-gnu/libncurses.so.5.9
                                                                                            7f56858c1000-7f5685ac0000 ---p 00021000 fd:01 6422951 /lib/x86_64-linux-gnu/libncurses.so.5.9
                                                                                                                                                                                                            7f5685ac0000-7f5685ac1000 r--p 00020000 fd:01 6422951 /lib/x86_64-linux-gnu/libncurses.so.5.9
                                                                                                         7f5685ac1000-7f5685ac2000 rw-p 00021000 fd:01 6422951 /lib/x86_64-linux-gnu/libncurses.so.5.9
      7f5685ac2000-7f5685ac9000 r-xp 00000000 fd:01 9830551 /usr/lib/x86_64-linux-gnu/libmenu.so.5.9
                                                                                                                       7f5685ac9000-7f5685cc8000 ---p 00007000 fd:01 9830551 /usr/lib/x86_64-linux-gnu/libmenu.so.5.9
                     7f5685cc8000-7f5685cc9000 r--p 00006000 fd:01 9830551 /usr/lib/x86_64-linux-gnu/libmenu.so.5.9
                                                                                                                                      7f5685cc9000-7f5685cca000 rw-p 00007000 fd:01 9830551 /usr/lib/x86_64-linux-gnu/libmenu.so.5.9
                                    7f5685cca000-7f5685cd8000 r-xp 00000000 fd:01 9830523 /usr/lib/x86_64-linux-gnu/libform.so.5.9
                                                                                                                                                     7f5685cd8000-7f5685ed8000 ---p 0000e000 fd:01 9830523 /usr/lib/x86_64-linux-gnu/libform.so.5.9
                                                   7f5685ed8000-7f5685ed9000 r--p 0000e000 fd:01 9830523 /usr/lib/x86_64-linux-gnu/libform.so.5.9
                                                                                                                                                                    7f5685ed9000-7f5685eda000 rw-p 0000f000 fd:01 9830523 /usr/lib/x86_64-linux-gnu/libform.so.5.9
                                               ...