Why is CAMT053 loading only through Transmission Configuration and how can we automate this

Summary:

We attempted to load CAMT053 bank statement files using the Load Interface File for Import process, but the files did not load and no bank statements were created.
However, when we tested the same CAMT053 file through Transmission Configuration, the file was successfully fetched from SFTP and loaded into Fusion without any issues.

Will Transmission Configuration pick up multiple files one by one from SFTP?

Can we define a file pattern so it only processes matching files?

Transmission Configuration does not pick up the same file again—we need confirmation if this is expected and whether files with the same pattern but different names will still be picked up.