The update went smoothly and I started Rapture Pro standalone first, then loaded in Sonar Everest.
Load time seems better.
Most of the things I tried worked, but a few samples would not load.
Here are some from the Log file:

09:54:10 [ C:\Cakewalk Content\Rapture Pro\Programs\DSF - E-MU Mo' Phatt\Bass\BelowaWoofer.prog ] Loading Program
09:54:10 [ C:\Cakewalk Content\Rapture Pro\Programs\DSF - E-MU Mo' Phatt\Bass\BelowaWoofer.prog ] Loading Legacy Program. (Program format version 10019)
09:54:10 [ c:\cakewalk content\rapture pro\rapture pro\multisamples\digital sound factory mo' phatt\belowawoofer.sfz ] Loading .sfz file
09:54:10 [ c:\cakewalk content\rapture pro\rapture pro\multisamples\digital sound factory mo' phatt\belowawoofer.sfz ] reading .sfz file...
09:54:10 [ c:\cakewalk content\rapture pro\rapture pro\multisamples\digital sound factory mo' phatt\belowawoofer.sfz ] loading c:\cakewalk content\rapture pro\rapture pro\multisamples\digital sound factory mo' phatt\mo' phatt samples\sine kick a#.wav
09:54:10 [ 繁䶰e ] Loading .sfz file
09:54:10 (!) [ 繁䶰e ] ERROR: unable to load
09:54:10 [  ] Loading .sfz file
09:54:10 (!) [  ] ERROR: unable to load
09:54:10 [ 竛တ￿￿繁 ] Loading .sfz file
09:54:10 (!) [ 竛တ￿￿繁 ] ERROR: unable to load
09:54:10 [ ] done loading legacy program
09:54:54 [ C:\Cakewalk Content\Rapture Pro\Programs\Rapture (legacy)\Galbanum Piscis\1 - Spectrum Pads\All These Worlds Pad.prog ] Loading Program
09:54:54 [ C:\Cakewalk Content\Rapture Pro\Programs\Rapture (legacy)\Galbanum Piscis\1 - Spectrum Pads\All These Worlds Pad.prog ] Loading Legacy Program. (Program format version 10014)
09:54:54 [ \library\audio\plug-ins\rapture content\galbanum architecture\sfz multisamples\spectrum instruments\gaussian spectrums\gsp032 (bandlimited saw).sfz ] Loading .sfz file
09:54:54 (!) [ \library\audio\plug-ins\rapture content\galbanum architecture\sfz multisamples\spectrum instruments\gaussian spectrums\gsp032 (bandlimited saw).sfz ] ERROR: unable to load
09:54:54 [ ] done loading legacy program
09:55:02 [ C:\Cakewalk Content\Rapture Pro\Programs\Rapture (legacy)\Galbanum Piscis\1 - Spectrum Pads\Broken Spectrum Pad.prog ] Loading Program
09:55:02 [ C:\Cakewalk Content\Rapture Pro\Programs\Rapture (legacy)\Galbanum Piscis\1 - Spectrum Pads\Broken Spectrum Pad.prog ] Loading Legacy Program. (Program format version 10014)
09:55:02 [ \library\audio\plug-ins\rapture content\galbanum architecture\sfz multisamples\spectrum instruments\gaussian spectrums\gsp031 (amfm 032).sfz ] Loading .sfz file
09:55:02 (!) [ \library\audio\plug-ins\rapture content\galbanum architecture\sfz multisamples\spectrum instruments\gaussian spectrums\gsp031 (amfm 032).sfz ] ERROR: unable to load
09:55:02 [ ] done loading legacy program

The factory Rapture 1 content should work correctly now in the Legacy bank. We're aware of some issues with some programs in the Galbanum Piscis expansion pack for legacy Rapture, which is what your log file is referring to. You can correct it manually however if you re-point that particular multisample to it's correct location, then re-save the program.