Problem with harfbuzz or text rendering when opening files made in another OS or version

[Jonah]

Text is now overspilling when I open articles up in Scribus.

It seems harfbuzz isn't rendering it correctly like it did in previous versions and is causing the text to be spaced/tracked a bit wider causing the overspills.

I hope someone can please help with a quick fix?

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: scribus 1.5.8+dfsg-4build2
ProcVersionSignature: Ubuntu 5.19.0-40.41-generic 5.19.17
Uname: Linux 5.19.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Mon May 1 21:48:20 2023
InstallationDate: Installed on 2016-07-23 (2473 days ago)
InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcEnviron:
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SourcePackage: scribus
UpgradeStatus: Upgraded to lunar on 2023-04-21 (9 days ago)

[Jonah (jonah)]

See this original bug for more information - this happened previously and I managed to fix it, but this time I don't see a way to fix the problem.

https://bugs.launchpad.net/ubuntu/+source/scribus/+bug/2014956