Hello,
to elaborate on my soliloquy, what's interesting that I had to this again after upgrade of Roundcube from 1.1.7 to 1.3.10.
I was using the standard bin/update.sh script and it apparently changed user_id's in the database for some reason.
So this time, I had to run the following to determine the new user_id:
SELECT user_id FROM users WHERE username='info@bioma.cz';
and two different ID's were shown!
There must be something wrong that causes changes and/or duplications of user_id's in the update script.
Anyway, I chose the higher user_id from the two and ran:
UPDATE contacts SET user_id='22' WHERE user_id='14';
UPDATE contactgroups SET user_id='22' WHERE user_id='14';
and now my contacts are back again.
It would be very frustrating to this for multiple user accounts after each update.
bhy