You don't have the factory library installed Factory Presets

 

This happens because certain presets like the one you have, use soundsource from multiple expansions beside their own.

The above case is an example where beside its own soundsource that particular preset also used a soundsource file form any of the earlier released expansion, It would be difficult to know which sound from which expansion the original author used to create this preset. But my best guess would be most likely from any of the earlier released factory/rom extension...
I think you should at least install the original xp factory library, xp rom, xp rom extension.

BTW if you already have those installed and still getting error messages then what you can do is check the layer menu, which will show the sounds which any preset is using, check which sound is missing, then search that name of that missing sound file in Nexus sample search. If you found that soundsource in some expansion folder, then simply copy that sound from that folder to the present expansion folder.

Reload plugin...you are good to go..

Yes I noted you don't have the original factory expansion installed. Find it and install......

 

Last edited: May 18, 2025

Nexus 5.2.17 is released
new:
- Add draw mode to layer envelope.
- Added SFZ / SF2 import.
- Added tune, pan, level to user samples.
- Added copy/paste for fx groups.
changes:
- Optimized plugin editor opening speed.
- Oscillators are now recreated if pasting layer into new preset.
fixes:
- Fixed preset browser sometimes showing the wrong category.
- Fixed bookmarked presets appearing in librarian twice.
- Fixed loading samples with accents in the filename.
- Fixed creating folders when some folders are hidden.
- Fixed crash loading single cycle wavetables < 1024 samples in length.
- Fixed latency calculation when fx either added or deleted or sample rate changes.
- Disabled resonance knob on layer filter if filter type does not support resonance.

 

Spoiler: Release v5.2.18

2025-07-21
new:

• Added button to sample editor that locks crossfade for all samples to be the same amount.

fixes:
- Fixed loading of presets that used 16 fx groups.

 

If you want to have the libraries sorted by release date (newest on top), there is a field that can be added in the content_properties.json file.

{"id":270139,"name":"Hypnotic Techno","preset_folders":"XP Hypnotic Techno","sample_folder":"XpHypnoticTechno","logo":"Hypnotic_Techno.svg","preset_folders_sort":"500"},

I attached my expansions.txt file. Every new expansion gets a smaller sort number (so the next one will be 499), so it gets sorted at the top of the list. I also attached my content_properties.json file (remove the txt extension).