Thanks for your reply Bellis and apologies for my late response.
None of my solutions have the logging feature enabled.
The logs being created appear to be from the software itself and they are found in the user's temp folder.
C:\users\username\appdata\local\temp. The files range from small to well over 2 Gb. They have millions of lines of code in them and appear to be a step through as the program executes the solution. I've attached an example.