Before any client-side logging is enabled using SET DATABASE PARAMETER in client-server mode, make sure the Logs folder exists prior to calling out that command. Otherwise, the logs will simply not generate.

To do so, open the Runtime Explorer under Run > Runtime Explorer and execute the expression below:

SHOW ON DISK(Get 4D Folder(Logs folder))



With that command, the Logs folder will be created and the logs will be correctly generated.