dir/ls only works with specific file if using a wildcard

Winscp.com Version 5.15 (Build 9365) on Windows Server 2012 R2

We have a new problem after upgrading WinSCP. I can only get dir or ls to find a specific file if I add a wildcard at the end of the filename.

Example, I first make sure the file is there with a dir on the directory:
winscp> dir ./data/incoming/immediate/
---------- 0 47 Jun 26 14:10 franktest.txt

Next, I try to dir the specific file:
winscp> dir ./data/incoming/immediate/franktest.txt
Error listing directory './data/incoming/immediate/franktest.txt'.
Could not retrieve directory listing
The filename, directory name, or volume label syntax is incorrect.
(A)bort, (R)etry, (S)kip: Skip

But, if I add a wildcard to the end of the file, it lists the file okay:
winscp> dir ./data/incoming/immediate/franktest.txt*
---------- 0 47 Jun 26 14:10 franktest.txt

Thank you.

It behaves as designed.
https://winscp.net/eng/docs/scriptcommand_ls#remarks

To check for an existence of a file, use stat:
https://winscp.net/eng/docs/scriptcommand_stat

See also
https://winscp.net/eng/docs/script_checking_file_existence

Okay, thank you. The script the devs wrote probably never worked correctly :) I'll pass on your response. Thanks for taking the time!

martin wrote:

It behaves as designed.
https://winscp.net/eng/docs/scriptcommand_ls#remarks

To check for an existence of a file, use stat:
https://winscp.net/eng/docs/scriptcommand_stat

See also
https://winscp.net/eng/docs/script_checking_file_existence