Onscreen keyboard bug - shift doesn't work

[konrados]

Onscreen keyboard bugs:

1. Uppercase don't work.

2. Special characters is changing to digits or another special characters, for example:
"@" produce "2"
"&" produce "7"
"+" produce "=".

It seems like shift don't work. I use polis language. In 17.04 version it works perfectly.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.17
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun May 6 20:28:36 2018
InstallationDate: Installed on 2017-12-02 (155 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to bionic on 2018-05-06 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz: Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 126: Error executing command as another user: Request dismissed
VarLogDistupgradeTermlog:

[dino99 (9d9)]

ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Wykonanie procesu potomnego „./xorg_fix_proprietary.py” (Nie ma takiego pliku ani katalogu) się nie powiodło (8))

[Brian Murray (brian-murray)]

This isn't a bug about the release upgrade process rather about the system after the release upgrade.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.