Files and folders disappear (but still exist!) if the path name exceeds a certain length under WebDAV.
The files will show up again, if the path name is shortened (e.g. by shortening one of the parent folder names).
The files will also show up if the drive is mounted using Dokany.
When does it occur:
Main cause is when files or folders are copied or moved into too long folder paths - the data seems to completely disappear (but actually is still there).
Other cause is renaming parent folder names resulting in exceeding path length in sub folders.
This is a serious problem for two (obvious?) reasons:
- we cannot find the files
- we may accidentally delete files when deleting seemingly empty folders that actually contain invisible data.
Other related issues:
- when trying to modify file names exceeding the maximum we receive errors pretending the file does not exist
- trouble deleting folders containing hidden data without explanation as to reason (actually a good thing but confusing as there is no prompt why the deletion failed)
- supposedly “missing files” reported in this forum may be a result of this bug.
It is hard to figure our what the exact path length is, but is is somewhere around 248 including the Cryptomator drive name.
The location of the encrypted files (i.e. the path length of the folder the encrypted files reside in) does not seem to be relevant with regards to this issue.
Currently using version 1.4.7 but the problem has occurred in earlier versions too.
System is Windows 10 x64 1803 Enterprise