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).

 

New NEXUS version [5.3.6]
new:
✨: Each effect can now be added to an FX group up to 10 times.
✨: SF2/SFZ can now be dragged to oscillators.
✨: MIDI create dialog can now create variations.
✨: Add zoom to EQs.
✨: Add gate to Reverb and Impulse.
✨: Added time based portamento.
✨: Added step record mode to arp.
✨: Added clear button to mod matrix entries.
✨: Added new FX picker dialog.
changes:
: Increased font sizes.
: Tweaked colors.
: Insert effects have been converted into their own FX types.
fixes:
️: Fixed mod source dials in footer not saving their selection.
️: Fixed mod source dial in footer not controlling synced LFO speed.

 

for me Nexus is the best vst plugin ever.. i use it basically religiously since 2006

 

and the band is called:
bumper's of the nexus academy

 

At first I thought it was a cleverly created repeating gif. But is a real video. Well done girls!

 

Nexus 5.3.7 is released

5.3.7
2025-08-16

fixes:
- Fixed crash loading presets with Glitch FX. - Fixed issues loading / saving trancegate presets.

 

Omg, new update again!

New NEXUS version [5.3.10]
fixes:
️: Fixed crash importing wavetables.
️: Improved precision of Delay time when unsynced.
️: When importing SFZ/SF2, apply pan to oscillator instead of layer.
️: Fixed importing samples from SF2 files.
️: Reverb/Impulse: Hide gate controls when not used.
️: Allow keyboard split display in footer to be hidden.
️: Disabled mouse wheel for EQ/HexEQ controls.
️: Fixed mod wheel modulation not being detected in some DAWs.
️: Removed duplicate Default FX presets.
️: Fixed default preset for EQ, Otter & Vinylizer.

 

5.3.13
2025-08-25
new:

• Added some samples for the FM oscillator.

fixes:

• Fixed crash disabling Glitch FX.
• Fixed plugin window not remembering it's size in FL Studio.
• Fixed creating previews for presets in user folders.

 

Are there no updates available for Windows?

 

NEXUS5 version history | reFX ---> https://refx.com/nexus/version/4

Spoiler: NEXUS5 version history

NEXUS5 version history
5.3.13
2025-08-25
new:

• Added some samples for the FM oscillator.

fixes:

• Fixed crash disabling Glitch FX.
• Fixed plugin window not remembering it's size in FL Studio.
• Fixed creating previews for presets in user folders.

5.3.10
2025-08-21
fixes:

• Fixed crash importing wavetables.
• Improved precision of Delay time when unsynced.
• When importing SFZ/SF2, apple pan to oscillator instead of layer.
• Fixed importing samples from SF2 files.
• Reverb/Impulse: Hide gate controls when not used.
• Allow keyboard split display in footer to be hidden.
• Disabled mouse wheel for EQ/HexEQ controls.
• Fixed mod wheel modulation not being detected in some DAWs.
• Removed duplicate Default FX presets.
• Fixed default preset for EQ, Otter & Vinylizer.

5.3.7
2025-08-16
fixes:

• Fixed crash loading presets with Glitch FX.
• Fixed issues loading / saving trancegate presets.

5.3.6
2025-08-14
new:

• Each effect can now be added to an FX group up to 10 times.
• SF2/SFZ can now be dragged to oscillators.
• MIDI create dialog can now create variations.
• Add zoom to EQs.
• Add gate to Reverb and Impulse.
• Added time based portamento.
• Added step record mode to arp.
• Added clear button to mod matrix entries.
• Added new FX picker dialog.
• New Nexus 1 retro skins.
• New Nexus 2 transparent skins.

changes:

• Increased font sizes.
• Tweaked colors.
• Insert effects have been converted into their own FX types.

fixes:

• Fixed mod source dials in footer not saving their selection.
• Fixed mod source dial in footer not controlling synced LFO speed.

5.2.18
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.

5.2.17
2025-06-20
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.

5.2.3
2025-04-28
fixes:

• Fixed crash with right to left languages like Arabic or Hebrew.
• Fixed crash right clicking in sample editor.
• Fixed crash modulating wavetable position.

5.2.2
2025-04-10
new:

• Users can now import and export user expansions. All presets and samples will be bundled into one archive.
• All oscillator parameters can now be modulated from layer mod sources.
• Added likes to sample browser.
• Added search term history to sample browser.
• Added fixed mode to oscillator starting phase.
• Add option to always from filter, reverb and delay on front page.
• Add FM oscillator presets.
• Add automatic slicing of drum loops.
• Add AM effect to oscillators.
• Added soft sync to virtual analog oscillator.
• Added support for importing impulses.
• Support creating variations when importing user samples.
• Added 6 band EQ (HexEQ).
• Add copy/paste between arps.
• Added new variations modes, true random, reverse round robin and reverse velocity.
• Added ability to hide expansions and presets.

changes:

• Increased max bpm of time stretch to 220.
• Moved transpose buttons to footer.
• Grain pos can now get modulated to negative positions.
• Added latency compensation to effect groups.
• Arp now remembers name of last used preset.
• Sample widget now has a drop target for samples and wavetables.
• VA Oscillators now show starting phase.
• Hash character is now allowed preset names.

fixes:

• Optimized browser search speed.
• Fixed preset sound differences between N2 and N5.
• Fixed retro librarian not remembering selected preset.
• Fixed vinylizer dry signal always mono.
• Reduced memory usage.
• Fixed arp pattern sometimes not getting saved / recalled correctly.
• Fixed analog chorus crackles.
• Distortion FX acts differently depending on the insert FX number.
• Fixed zooming in Sample Editor could cause DAW to hang.

5.1.9
2024-12-26
fixes:

• Fixed crash when unloading multiple instances.
• Fixed glitches when loading retro-skins

5.1.8
2024-12-23
new:

• Retro page has a skin-selector now.
• Added 35 skins (all N2 era skins that ever existed, plus a few new ones)

fixes:

• Filter envelope wasn't modulatable via the filter-modifier correctly.
• Single-cycle wavetables import correctly now.
• Don't delete "unused" EQ during preset load anymore.
• Improved v-sync behaviour.

5.1.6
2024-12-09
new:

• Retro librarian now saves the sort order.

fixes:

• Fixed filter cutoff envelope being applied in rare circumstances.
• When loading FX presets, fixed incorrect preset name being displayed.
• Fixed folders being sorted randomly instead of alphabetically if they are not 1st party content.
• Fixed Librarian changing selection when collapsing folders.
• Fixed sequencer mode doesn't clip notes correctly.

5.1.5
2024-12-06
new:

• Added setting to disable hardware graphics acceleration [Windows].
• Added setting to reduce amount of user interface animations.

changes:

• Disabled automatic generation of missing preset previews on startup. Right click on a folder to generate missing previews.
• Revert subsonic filter to be the same as the one used in Nexus 4.
• Report main LFO speed in Hz.

fixes:

• Sample Editor: Made detecting root note from sample filename more robust.
• Sample Editor: When importing, get loop points from wav/aiff metadata.
• Fixed timestretch generator ignoring phase settings.
• Rename OSC mode destinations from 1 - 4 to A - D to match names of operators.
• Fix mouse cursor disappearing in Logic after dragging knob.
• Fixed Cubase converting save state from VS2 to VST3.

5.1.3
2024-12-04
new:

• Added option to make default UI retro mode.
• Default state for keyboard open or closed is now saved in preferences.
• Add icons and activity meter to layers on routing page.

changes:

• Improved error messages when importing samples.

fixes:

• Fixed crash when shortening arp pattern.
• Fixed crash when importing samples into sample editor.
• Fixed existing slices getting cleared when importing new sample into sample editor.
• Fixed preset loading progress bar not animating.
• Fixed hang loading ProTools projects.
• Fixed being able to select dividers in librarian.
• Fixed crash drawing reverb.
• Fixed sustain pedal.
• Improved stability and general bug-fixes.

5.1.1
2024-11-30
fixes:

• Fixed flanger sometimes going silent.
• Fixed Saw Init presets not having user's name.
• Fixed user LFO3 & LFO4.
• Changing / disabling layer mod matrix entries is now more reliable.
• Added locks back to amp and filter modifier.

5.1.0
2024-11-28
new:

• Completely Revamped Interface.
• 1177 new presets.
• N2 retro UI.
• Sample import & edit.
• New effects: Particle, Vowel Filter, Vinylizer, Rotary.
• New generators: Retro, Grain, Cloud, and FM.

 

Finally they fixed their website. NEXUS5 version history | reFX