Hi,
Are you sure, that you have the V3 version?
In V-Collection 8 you have the full JUP-8 V4 application - not V3. Do you have earlier versions of V-Collection where you have the V3 version, and if so, then do you have it installed alongside Jup-8 V4?
The Multi preset you mention use the V3 version.
I can edit the mentioned preset here. I have both the V3 and the V4 version installed.
I also have the "Include Legacy Sounds" activated. I don't think that matter in this case - but just so you know in case it somehow does matter.
I'm on Windows 10.
(Even though the V3 sounds will not sound the same in V4, then i still would like Arturia to at convert the old presets to V4 versions as good as possible.
This goes for the Stage 73 presets as well.)