kwin_x11 crashed with SIGSEGV in KWin::EffectsHandlerImpl::drawWindow()

[Sebastian Horatio Stillion]

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ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: kwin-x11 4:5.18.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Mar 31 17:20:00 2020
ExecutablePath: /usr/bin/kwin_x11
ProcCmdline: /usr/bin/kwin_x11 -session 1012813b129bc000158421340400000013610004_1585688661_446198
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: kwin
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
 ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
 ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
 ?? () from /lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
 KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion const&, KWin::WindowPaintData&) () from /lib/x86_64-linux-gnu/libkwin.so.5
Title: kwin_x11 crashed with SIGSEGV in KWin::EffectsHandlerImpl::drawWindow()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed as the report has a core dump which is invalid. The
corruption may have happened on the system which the crash occurred or during
transit.

Thank you for your understanding, and sorry for the inconvenience!