Hi nevw.
Thank you for another prompt reply. I believe I have now successfully made the changes you pointed out, so hopefully with that, the issues are now resolved.
Fingers crossed this time.

nevw,
Thank you very much for your speedy reply.
My error was tagging the additional track I added as 'disused' - when it is infact 'active'. I have just made a further edit to change this 'disused' section of track to 'active'/'train track'. Hopefully those changes should take effect soon and the correction can be seen.
If I have been unsuccessful in making these changes, I will return here in a week's time to ask for assistance to revert/delete my original changeset edit.
Thanks again.

My apologies, in an attempt to install a line section of double track, it seems I have inadvertently removed the wye junction which connects the Julago Cattle sidings with the main line adjacent to the Bruce Hwy overpass near Stuart.

I am sorry for this interference of the original data.
I hope that mistake can be undone and if need be, you can delete my entire double-track edit between Stuart and Nome(QLD).

As a first-time editor of OpenStreetMap, I am unsure if I can delete my submitted edits.
Again, my apologies.