Directory check on newly created vault returns "Directory ID backup for directory is missing."

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Hi,
I’m fairly new to Cryptomator. I recently ran a directory check on my vault, and got a warning:

Check Directory Check
------------------------------
STATUS: SUCCESS
RESULTS:
    WARN - Directory ID backup for directory AA\YN6RDM5OA6EGHI7BBT7GVGHZFF4IQL is missing.
    GOOD - Good directory E:\OneDrive\Backup\d\HV\B4CMYN7FMKRMLT7B7LZS6W6FUC6VVZ\U34LDJosWlAIVcS5KOyqBk-5jHu6sDj2GA==.c9r\dir.c9r (297133a1-0603-4592-83d7-fdc772540651) -> EJ\7RPW44T4M54IEBWLVAKCBDZGO7VKBF
    GOOD - Good directory E:\OneDrive\Backup\d\SL\2Q7RUOPL3E5BR6ZDNS5S2ZW3F4MFGO\P15q10Ui6NqgWvj0rFuJSFByIgAXWv8LGWCvTM9z2sLN2tKQgXmrhb5X4B6oTmemr1xkzQ==.c9r\dir.c9r (4ae8a6c0-688f-430d-a2fa-88a674ab19bc) -> 4X\ZDFEUK6RHYS5LACYW2TGWXHYZ4LDOB
...

To look further into this, I created a new, empty vault as an experiment and ran directory check on it and see the same warning:

Check Directory Check
------------------------------
STATUS: SUCCESS
RESULTS:
    WARN - Directory ID backup for directory PH\75Z4S7TAT6YNFELLU7IK5EZNNW55BH is missing.

If I click “Fix” besides the warning, and run the directory check again, I get

Check Directory Check
------------------------------
STATUS: SUCCESS
RESULTS:
    GOOD - Good directory null () -> PH\75Z4S7TAT6YNFELLU7IK5EZNNW55BH

I also notice a file named dirid.c9r is created in PH\75Z4S7TAT6YNFELLU7IK5EZNNW55BH after the fix.
Why does directory check return a warning on a newly created vault? Is this a bug? What is dirid.c9r? I also clicked “Fix” on my original vault, will it impact my vault in any way?

Thanks!

OS: Windows 10 Pro
Software: Cryptomator 1.6.15

2

oi, indeed, 'tis one. :person_facepalming:

I’ll open a ticket on our bug tracker and link it here. Thanks for reporting!

Edit: Directory check warning on new, untouched vault · Issue #2488 · cryptomator/cryptomator · GitHub

For

, have a look at Security Architecture — Cryptomator 1.7.0 documentation.

Your last question should be then answered as well.

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