Downloaded and installed. Some assets labelled "Unknown Location" or "Third Party". On loading into Surveyor there was a noticeable number of "missing asset" cubes scattered around the layout - not all seemed to be related to those listed as missing. As per my usual practice, I deleted all missing assets.
Yes, issues in rendering distant objects.
I did some experimenting with the following observations.
- Saving the Route (with a new name) upgraded it from build 4.5 to 5.6. Reloading the upgrade made a noticeable difference. Still not perfect.
- I noticed that the route contains a huge number of billboard trees including many tree splines. Perhaps the "(Updated)" in the route title indicates a very early origin?
- Deleted (via the Disable option in CM) all the tree splines. Another significant improvement in performance. Almost no rendering issues.
- I replaced (via the Bulk Replace option in Surveyor) as many of the billboard trees with their PlantFactory equivalents (or "close-enoughs") as I could - I didn't get them all because some of the billboard trees had no PF equivalents.
The end result, in both Surveyor and Driver, was the elimination of the rendering issues.
Now I know that this is not the solution for everyone but it does illustrate a point that posters have made over the years about the continued use of legacy assets (in this case billboard trees and tree splines) in the latest Trainz versions. They are clearly a drain on system performance.
In my own routes I have not seen any issues after the update.