python3.9 crashed with SIGABRT in WTF::String WTF::fromUTF8Impl<false>()

[Norbert]

crashed

ProblemType: Crash
DistroRelease: Ubuntu 21.04
Package: python3.9-minimal 3.9.4-1
ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
Uname: Linux 5.11.0-13-generic x86_64
ApportVersion: 2.20.11-0ubuntu62
Architecture: amd64
CasperMD5CheckResult: pass
Date: Sun Apr 11 14:59:12 2021
ExecutablePath: /usr/bin/python3.9
InstallationDate: Installed on 2021-04-11 (0 days ago)
InstallationMedia: Ubuntu-MATE 21.04 "Hirsute Hippo" - Beta amd64 (20210411)
ProcCmdline: ubuntu-mate-welcome
ProcEnviron:

Python3Details: /usr/bin/python3.9, Python 3.9.4, python3-minimal, 3.9.2-2
PythonDetails: N/A
Signal: 6
SourcePackage: python3.9
StacktraceTop:
 WTF::String WTF::fromUTF8Impl<false>(unsigned char const*, unsigned long) () from /lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 WTF::String::fromUTF8(unsigned char const*, unsigned long) () from /lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 ?? () from /lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
 ?? () from /lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
 ?? () from /lib/x86_64-linux-gnu/libgtk-3.so.0
Title: python3.9 crashed with SIGABRT in WTF::String WTF::fromUTF8Impl<false>()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
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