parole crashed with SIGSEGV in 5mcInteractiDone() (19.10 xubuntu qa-test; shutdown didn't occur)

19.10 Xubuntu daily test

I was trying to shutdown system using whisker menu. it did nothing.

I assumed I'd made a mistake without mouse so tried again and got message

"Received error while trying to log out \n GDBus.Error.org.freedesktop.DBus.Error.InvalidArgs: Type of message, "(yb)", does not match expected type "(b)" with (close) button.

Then apport appear and is reporting this `parole` crashed (i didn't close windows prior to attempt to shutdown.

note everything here is typed into d960 (system near it), not copy/pasted on d755 or test system where crash occurred (firefox won't load on that system anymore..)

ProblemType: Crash
DistroRelease: Ubuntu 19.10
Package: parole 1.0.2-0ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
Uname: Linux 5.0.0-15-generic x86_64
ApportVersion: 2.20.11-0ubuntu2
Architecture: amd64
CasperVersion: 1.407
CurrentDesktop: XFCE
Date: Tue Jun 4 06:09:03 2019
ExecutablePath: /usr/bin/parole
LiveMediaBuild: Xubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190604)
ProcCmdline: parole /media/username/lub_home/guiverc/de2900\ -\ favorites\ -\ Phil\ Collins\ -\ In\ The\ Air\ Tonight\ (CD\ Single).wav
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fef99980348 <SmcInteractDone+8>: mov 0x8(%rdi),%rbx
 PC (0x7fef99980348) ok
 source "0x8(%rdi)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: parole
StacktraceTop:
 SmcInteractDone () from /lib/x86_64-linux-gnu/libSM.so.6
 ?? () from /lib/x86_64-linux-gnu/libxfce4ui-2.so.0
 _SmcProcessMessage () from /lib/x86_64-linux-gnu/libSM.so.6
 IceProcessMessages () from /lib/x86_64-linux-gnu/libICE.so.6
 ?? () from /lib/x86_64-linux-gnu/libxfce4ui-2.so.0
Title: parole crashed with SIGSEGV in SmcInteractDone()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
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