Missing KUIDs from Macs

Would I be correct in thinking there are Auran KUIDs (#523) in the MAC versions of Trainz that are not available for the Windows versions of Trainz? Does this mean sessions or routes created on the MACs can not be used in Windows? If that is correct why would CM not display MAC or PC somewhere so they can be identified. This does not make sense to me. I hope I am wrong here in my understanding. Can someone explain this.
Thanks
Bob

It could be that the files you are looking for are originally payware or updated and not available for your particular version of Trainz. The newer versions of Trainz for the MAC is at a different build level than TS12, for example and the content created or saved in that version won't work in TS12, but may load up fine in T:ANE. This is actually the same for T:ANE-level content - it won't load up in TS12 directly. The 523 assets maybe, as I said, be payware, which unless you have installed yourself won't be available for you to use.

This group of missing kuids do not appear to be on the DLS or listed by www.trainzkuidindex.com. Could someone with a MAC look and see if they are built-in? These are from a session named 844.

844,<kuid:696663:100013> Session
Unknown Location: <kuid:523:1972867>
Unknown Location: <kuid:523:1972874>
Unknown Location: <kuid:523:1972889>
Unknown Location: <kuid:523:1972890>
Unknown Location: <kuid:523:1972953>
Unknown Location: <kuid:523:1972958>
Unknown Location: <kuid:523:1972963>
Unknown Location: <kuid:523:1972969>

Edit: I see lots of content with higher build numbers than 3.7 which I know I can not use or download, but these are simply not found
Thanks
Bob

Not a mac user however, It's payware - LMS Duchess pack.

Thanks Malc. N3V could increase sales just by listing these kuids.

Thanks again
Bob