updated to TB 38.3.0 + Lightning 4.0.3.1 = EVERYTHING is gone

Hallo,
my major problem after update to TB 38.3.0 + Lightning 4.0.3 = EVERYTHING is gone, all accounts, all mails, ... nothing, TB starts from new.
Safe mode, disabling addons, going back to TB 38.2.0 - nothing helps. After transfer of /data/profile, local accounts are back in an new profile
Annybody an idea how I get back my accounts inkl. pop3 and imap.

THX in advance.