I had the same problem with this patch, here's what worked for me:
1. Close ROF
2. Make a backup copy of your '\<ROF Install>\updates' dir (in case this doesn't work you can undo)
3. Delete everything in your '\<ROF Install>\updates' dir except the current.snap file
4. Start ROF and do the update, it should download all the patch files again from scratch
5. Wait while it patches, this took a little while
6. It should Complete and then be ready to "Start game" to play...
7. Worst case if this didn't work replace your original '\<ROF Install>\updates' dir
YMMV = Your mileage may vary, use at your own risk etc...
--John
_________________________
--John
i5-2500k@4.8ghz, Asus P8Z68-V Pro/Gen3, 8GB G.Skill@1600, Noctua D14, X-Fi TitaniumHD
MSI 560Ti/448OC 1280MB@900/1800/2250, 3 x P2310H monitors, HAF932, Corsair TX850, Win7x64Pro
TrackIR4, Saitek X52Pro + Pro Rudders + Cessna Trim Wheel (sim flying)
Fanatec GT2 + G27 pedals (sim racing)
PSN/XBL/Steam/EA/ProjectCARS: Kludger
iRacing/rFactor2: Joao Silva