Sadly, beyond my control, three modular routes I uploaded, which were QR Wherearewe, NSWGR Wherearewe and NSWGR Leopold yard, which *were* built in TRS2006 with SP1 (so, theoretically, should work in SP1/TC/TRS2009), somehow, got 'classified' by the DLS as UTC (Sp3) content. Why, I truly do not know - but I have raised this issue privately with Auran Admin, and have since uploaded new versions (revision :1) of these routes, in hopes that they will upload successfully. I do apologise for this, but as I done everything right - I do not know how they as TRS2006 routes, got classified as UTC when their Trainz Build tag clearly states 2.6.
As for the content with the :127, there is a lot of this about - Advance has a fair number of them, but a lot of it is Robertoconti19's excellent foilage. I think, and I may be wrong, that this is caused by content creators giving their content, the KUID ID of KUID2:XXXX:XXXX:0 - which the DLS can not seem to understand (which I suspect is right - as it should be KUID:XXXX:XXXX, or KUID2:XXXX:XXXX:1), so it goes and adds :127 onto it. Editing the config of offending item can help, but if its downloaded again, then it will 'revert' back to the :127 KUID ID ending - only the content creator can 'update' this, to the correct KUID ID and reupload, as version KUID2:XXXX:XXXX:1, or higher.
If you would like the routes, until I can get them 'properly' uploaded, I would be more than happy to send them to you (as they are only small, modular routes), and then you can import them to CMP and it *should* then find all the missing dependencies. I've gone out of my way to remove any :127 content, but some may have 'slipped under the radar'.
*edit* Having just 'checked' these three modular routes, uploaded again, it seems they are to be approved (they're in the waiting area) and correctly 'flagged' as TRS2006 / SP1 content.