Help required: Vault completely empty despite sanitizer showing 3,000 files and little warnings, folder structure damaged

Thanks a lot. I tried as told. Result in short > migration ran without problem, but still only one pdf file visible when opening the vault

I upgraded version to 1.5.7 / downloaded an original vault / opened the vault in which step the migration was triggered / migration ran through without any issues / in the log I can see that all around 2400 files were migrated without error /

for every file entries as below (see your mentioned record)
19:58:11.216 [App Background Thread 003] INFO o.c.c.migration.v7.MigratingVisitor - MOVED C:\DATA\BEI\crypt\Cryptomator\d\VS\GRPAYA47XIGPRDQDIYAXEYSUPNKMWE\I2Q6CJR3BOH7P3ZW63KHVSKCLOTS3C3RVM5WQTEFRWTS6QJM4PYDMSIKCILMMXA= to C:\DATA\BEI\crypt\Cryptomator\d\VS\GRPAYA47XIGPRDQDIYAXEYSUPNKMWE\RqHhJjsLj_fvNvbUeslCW6cti3GrO2hMhY2nL0Es4_A2SQoSFsZc.c9r
19:58:11.219 [App Background Thread 003] INFO o.c.c.migration.v7.MigratingVisitor - MOVED C:\DATA\BEI\crypt\Cryptomator\d\VS\GRPAYA47XIGPRDQDIYAXEYSUPNKMWE\IDAR66FZ6Z35P5TYAFYDVA3KUUMGWNWE26HXPA5GB6WOQPOEG5RACFO4HXMXMVN46Q5BM=== to C:\DATA\BEI\crypt\Cryptomator\d\VS\GRPAYA47XIGPRDQDIYAXEYSUPNKMWE\QMEfeLn2d9f2eAFwOoNqpRhrNsTXj3eDpg-s6D3EN2IBFdw92XZVvPQ6Fg==.c9r

Files must be around, but I do not know how to make the files/directory structure visible
Do you see anything strange in above? Any ideas how to bring it back / could it be related to this issue Empty Vault, but still allocates Space?

Thanks for further hints