Polari doesn't join any chatroom. 'Join' button stays greyed-out (disabled)

[Sai Vinoba]

I'm trying to use Polari IRC app on Ubuntu 20.04 (in virtualbox). I'm not able to join any chatroom because the 'Join' button stays greyed out when a chatroom is selected. This is same for any server/chatroom I could check. Screenshot attached.

If I run polari from terminal, I get following error.

svinoba@focal:~$ polari

(polari:21203): Gjs-WARNING **: 16:31:29.656: JS ERROR: TelepathyGLib.Error:
_onRowActivated/<@resource:///org/gnome/Polari/js/connections.js:216:27
main@resource:///org/gnome/Polari/js/main.js:63:12
run@resource:///org/gnome/gjs/modules/package.js:222:12
start@resource:///org/gnome/gjs/modules/package.js:206:5
@<main>:1:1

However, if I search for telepathy and glib combination, I get following.

gir1.2-telepathyglib-0.12/focal,now 0.24.1-2 amd64 [installed,automatic]
  GLib Telepathy connection manager library (GObject-Introspection)

libtelepathy-glib0/focal,now 0.24.1-2 amd64 [installed,automatic]
  Telepathy framework - GLib library

Polari works fine on Ubuntu 18.04, Debian Sid and Arch. Haven't tried in Ubuntu 19.10, although the package version in 19.10 seems same as 20.04.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: polari 3.34.0-1
ProcVersionSignature: Ubuntu 5.0.0-37.40~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu15
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Jan 14 09:48:34 2020
InstallationDate: Installed on 2019-08-14 (152 days ago)
InstallationMedia: Ubuntu-MATE 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
SourcePackage: polari
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Sebastien Bacher (seb128)]

The issue should be fixed with this update

https://launchpad.net/ubuntu/+source/telepathy-mission-control-5/1:5.16.5-1ubuntu1

Closing but feel free to reopen if it doesn't work for you

[Sergio Schvezov (sergiusens)]

Confirming this is now fixed