I've installed the update and I appear to having the same issues as others have reported. The track, in particular, is not appearing correctly. Performance is down ~20%.
The first video from my WIP route is from build 129343:
The next video shows the same scene in 131950 (note: the power station and QEII bridge don't appear):
The final video is something that caught my eye whilst not moving over a scene. It's stuck in a constant loop:
Note: all settings are the same between the builds, including draw distance of 22km.