deja-dup-monitor crashed with SIGSEGV

[Martin Wimpress ]

deja-dup-monitor is segfaulting upon login to the desktop session.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: deja-dup 37.1-1fakesync1
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: MATE
Date: Sat Mar 3 21:55:56 2018
ExecutablePath: /usr/lib/deja-dup/deja-dup-monitor
InstallationDate: Installed on 2018-01-23 (39 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180123)
ProcCmdline: /usr/lib/deja-dup/deja-dup-monitor
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/usr/bin/fish
SegvAnalysis:
 Segfault happened at: 0x7fb82ba93588: movl $0x0,(%rax)
 PC (0x7fb82ba93588) ok
 source "$0x0" ok
 destination "(%rax)" (0xbbadbeef) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: deja-dup
StacktraceTop:
 () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 __pthread_once_slow (once_control=0x7fb82bcfb02c, init_routine=0x7fb822b76490 <__once_proxy>) at pthread_once.c:116
 Gigacage::ensureGigacage() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 bmalloc::Heap::Heap(bmalloc::HeapKind, std::lock_guard<bmalloc::StaticMutex>&) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::getSlowCase() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
Title: deja-dup-monitor crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip input lpadmin lxd plugdev sambashare sudo