Log snippet from FileZilla Pro to FileZilla Server 1.0.0-rc2 (everything else in the log is perfectly normal):
The item is displayed in the raw listing as follows:03:23:08 Command: CWD test
03:23:08 Response: 550 No such dir
03:23:08 Error: Failed to retrieve directory listing
_____03:24:35 Listing: type=dir;modify=20210711005615.764;perms=el; test
For testing, I reactivated the old 0.9.60.2 version. It handles all such links, both for files and directories, perfectly.
Log snippet from FileZilla Pro client:
Raw:03:28:07 Command: CWD /pub/test
03:28:07 Response: 250 CWD successful. "/pub/test" is current directory.
The only difference I can see right now is that the old version does not list the "perms=el" part.03:27:34 Listing: type=dir;modify=20210711005618; test
Edit: Both server versions were tested internally and did run under the same account (SYSTEM). Additionally, the test directory has been assigned Full Access for Everyone, to exclude any ACL issue.
Edit2: I have just seen that FileZilla misses the "/pub/" part for linked directories in the CWD argument! CWDing into real, physical directories includes it.