Reading from keychain failed with error: "Could not open wallet: org.freedesktop.DBus.Error.Noreply: Message recipient disconnected from message bus without replying

ownCloud client doesn't save password: login fails on boot.
...with message "Reading from keychain failed with error: "Could not open wallet: org.freedesktop.DBus.Error.Noreply: Message recipient disconnected from message bus without replying"
Any suggestions?

Steps to reproduce
1. Install ownCloud client
2. Connect to the OwnCloud server with password
3. Disconnect from
4. Connect again and you have subj message

Expected behaviour
Password must be saved between sessions

Client configuration
Client version: Actual
Client operating system: Arch Linux

Server configuration
Operating system:Arch Linux
Web server:Apache
Database:MariaDB
PHP version:7
ownCloud version (see ownCloud admin page):Actual
Updated from an older ownCloud or fresh install:fresh

As pointed out at IRC #owncloud this looks like a issue within your distro (e.g. https://bugs.kde.org/show_bug.cgi?id=353622) so moving to the miscellaneous category.

Hm...
No one of Arh'ers can't confirm it.
It looks like Kwallet manager opens, but it won't change any settings. It confirmed.