lubuntu lxqt - space between touching monitors

This really is a re-file of https://bugs.launchpad.net/ubuntu/+source/lxqt-config/+bug/1882411

I've blamed OPENBOX here, quick play by switching to xfwm4 though... and I could replicate issue with xfwm4 so my blaming openbox is incorrect.. Now marked duplicate.

Lubuntu noble was only re-installed on this box today (re-install of an install earlier today).. Install went well, at least until I explored monitor position & adjusted to fix minor issue

NOTE my resolution for monitors is NOT identical; which maybe significant in experiencing this issue! This is NOT a new issue either.

** expected result

I adjust monitor position so my monitors correctly TOUCH instead of overlap (overlapping was default) and click apply.

The attached screen.jpg shows HOW I aligned my monitors..

** actual result

There is a GAP between the monitors; my windows can disappear between them, and there is a delay when I move mouse-pointer between my 'touching' monitors (pointer is in the gap).

Note the left side of the clementine music player window cannot be seen. If I drag it a little left, I can have ~2cm of the window appear on both displays however it's useless as almost none of the window is actionable or readable.

This maybe a wrong filing, and is only a duplicate of aforementioned bug (1882411) report.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: openbox 3.6.1-12build4
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: LXQt
Date: Tue Apr 9 15:22:24 2024
InstallationDate: Installed on 2024-04-09 (0 days ago)
InstallationMedia: Lubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240408)
SourcePackage: openbox
UpgradeStatus: No upgrade log present (probably fresh install)