You have no page id42.htm according to your own TlxTransfer.txt file.
I found:
h**p://www.arthurhewett.com/id41.htm
h**p://www.arthurhewett.com/info_dwnload_3.htm
h**p://www.arthurhewett.com/info_and_download_page.htm
I imagine the last one is the one you expected to be id42.htm
Please see this information about the PAGE PROPERTIES in CSB5. Trellix, CSB3 and CSB4 default to the PAGE ID number for the file name when the short title field is left blank.
But CSB5 is different. In CSB5, the
page title will prefill the file name field instead of defaulting to the idxx.
Highly recommended that you UNCHECK the box to set the file name automatically with page title. It is BAD PRACTICE. Type in your own name. NO SPACES or SPECIAL CHARACTERS! Can use _ and - but nothing else!
If you uncheck the box AND leave the file name blank, you will get an idxx.htm type name