[solved] plasma 6 kmail accounts not visible

[pogwizd]

Hi everyone,

With the latest update of plasma and kmail, I have a problem with the later one consisting of missing mail accounts in the mail folder tree.
This is quite strange, since in the kmail settings, thoses are present, and seems to be OK according to the settings view.

Another strange behavior is that kmail is technically not closing. If I want to close it, I have to kill it.

I tried to fully reset the configuration by:
-> flushing the database (postgres)
-> removing all the file related to kmail, kalendar, kaddressbook and of course akonadi.

After a fresh start of the kdepim system, I add in kmail all my e-mail accounts (imap and local).
During the first session (the one where I configure the accounts), they are all visible, but once I stop kmail (or kontact) and then restart it, several of my accounts are not visible anymore.

Does someone have an idea of what can goes wrong?
Thanks,

[pogwizd]

It was finaly solved, after upgrading the postgreSQL database engine to the slot 17, and fully resetting again kdepim.