Jack
Given the size of this update, in some cases it makes more sense to uninstall and install it. The level of compression and size of the zip files used I think is creating issues on some devices.
I heard from one person earlier that they had to wait 5 minutes after the patcher had reached 100% complete waiting for the files to be extracted, but then it all worked.
More info on this:
All of the track art is included in this patch (it gets included even if there's a tiny change to the track files), and I think this is a big part of the problem. Imagine all that artwork being extracted from zip files by a software program that isn't a zip archive tool (the patcher) and it's easy to imagine it getting stuck or confused. Unfortunately, we have little control over the third-party patch tool as we didn't build it. In future we really must look to stop so much artwork being included in patch files though, this is something we were discussing internally.
Mine has updated to 4.100.. there is another update after this yes?