Hello
WinFsp (Local Drive)
I open the Cryptomator vault, switch to the command prompt (CMD) and enter the drive letter. After that I write cd hello, There is no data available.
It only works with the cd Hello command.
Welcome to the Cryptomator Community 
,
the virtual filesystem created by Cryptomator is case sensitive due to system. This means, that you have to use the correct capitalization, also on Windows systems.
For a technical reasoning, see Same folder exists twice first Char lowercase and uppercase · Issue #622 · cryptomator/cryptomator · GitHub