[kronolith] Kronolith 5.03 : After migration No calendars in the left side bar for a user

[gbreiner]

Hello,

I migrated webmail 1.2.8 (horde 3.3) to horde H5 5.0.3 ...For most users it
works very fine but   there is at least someone who have an issue with the
newest kronolith version 5.0.3. Her calendars are not loaded. There is not
any calendars in the left side bar.
Maybe an issue with the user settings in the table horde_prefs ?  What could
be wrong ? Would you have some hints  please ?

Any help would be greatly appreciated.

Best regards.

Gérard