Presets made before VC5 need to be updated by a speciel converter you can find here.
VC5 PRESET UPDATER:
https://www.arturia.com/support/updates&manuals#vc5-preset-updateralso you can get more informations here:
https://www.arturia.com/faq/utilization/preset-converter-general-questionsAnd there are also lots of posts about this in the forums. Like here:
WHAT DOES THE CONVERTER DO?:
http://forum.arturia.com/index.php?topic=87964.0Be aware that presets converted from older versions to VC5 perhaps don't sound escactly the same.
So you might wan't to keep the old v-collection alongside VC5.
The converter you have used i assume is the converters used to unlock from using eLicenser. That don't work for CS5.