Release Date: January 21st, 2026
The release notes include:
What was fixed in VStitcher 2025.3.1
Instructions on upgrading and downloading new VStitcher versions
What's fixed
Sharing to Stylezone with 3D objects Fixed an issue where sharing a style with a 3D object to Stylezone could cause VStitcher to freeze or crash during rendering.
External annotation editing in Illustrator Resolved a problem where annotations edited externally in Adobe Illustrator could not be saved back or returned correctly to VStitcher.
Schematic render missing artworks Fixed an issue where artworks using lower layer maps were not visible in schematic render mode.
RGB value changes lag in Colorway workspace Improved performance when editing RGB values in the Colorway workspace to prevent delayed or incorrect input updates.
Preferences resetting after Windows update Addressed an issue where VStitcher preferences could reset to default after Windows updates or when opening multiple application windows.
Intersected cutmarks fabric assignment Fixed a bug where intersected cutmarks prevented fabric from being correctly assigned to divided pattern sections.
Crash when changing stitch construction in Solid mode Resolved a crash that could occur when modifying stitch construction while 3D Display Mode was set to Solid.
Smart button distorting garments Fixed an issue where single-point stitches could cause collar pieces to loosen or distort during simulation.
Temporary color shift of vector artwork (Mac) Resolved an issue on macOS where vector artwork colors could temporarily appear over-saturated in 2D and 3D views.
Transparent VM avatars on Mac Fixed a Mac-specific issue where Vital Mechanics (VM) avatars could appear transparent when imported into VStitcher.
DXF import from Gerber duplicating internal lines Fixed an issue where importing DXF files from Gerber could create duplicated internal lines in the 2D window.
Stitching distortion after editing holes Resolved a problem where stitching could become distorted or disappear after editing points on holes or related internal lines.
Corrupted cover image on Stylezone upload with VQS Fixed an issue where uploading styles to Stylezone using VQS could result in a corrupted or duplicated cover image.
DXF import losing or misapplying grade rules for internal lines Fixed an issue where internal line grading could be missing or incorrect when importing DXF files, ensuring grade rules are preserved consistently.
Symmetrical styling shifting hold areas on macOS Resolved a macOS-specific issue where hold areas could unintentionally move when using symmetrical styling.
Damaged fabric mapping thumbnails after fabric replacement Fixed a crash and thumbnail corruption issue that could occur after replacing fabrics in a garment.
File crash when loading snapshots Resolved an issue where specific files could consistently crash VStitcher when loading snapshots.
Trim color lost when exporting GLB or sharing to Stylezone Fixed an issue where trim colors could disappear when exporting to GLB or sharing styles to Stylezone.
Trim color loss during GLB export Resolved an issue where trim colors were not preserved when exporting GLB files in certain workflows.
Trim color loss during GLB export (BeProduct) Fixed an issue where trim colors could be lost when exporting GLB files from snapshot-only garments.
GLBR Render Crash Fixed an issue where rendering GLB files could fail to start and cause the application to become unresponsive.
Losing trim color on GLB export
Resolved an issue where trim colors were missing after exporting garments to GLB format.
Seam scale enlarged Fixed a bug where seam visuals appeared incorrectly scaled when using real-time ray tracing with GPU rendering.
Unable to load plugins in 2025.3.0 Fixed an issue that prevented plugins from loading in version 2025.3.0 while they worked correctly in earlier versions.
Replace piece with internal lines not working with symmetry Fixed an issue where internal elements became distorted when replacing pattern pieces with symmetry enabled.
VS API – physics.json values not updating Resolved an issue where physics mass and thickness values were not applied when updated via the VS API.
Unable to share to Stylezone with 3D Object Fixed an issue where garments containing 3D trims could not be rendered or shared to Stylezone.
Fabric transparency not displaying correctly Fixed an issue where fully transparent fabrics did not correctly reveal underlying elements in the 3D window.
2D Measure showing incorrect values on graded sizes Fixed an issue where 2D and Fast Measure tools displayed base-size measurements when switching to other sizes.
Download and Upgrade Versions Instructions
Upgrading to VStitcher 2025.3.1:
Download and install VStitcher from Here
Cloud License Users - send your upgrade request to [email protected]. There is no need to send any files.
Dongle License Users - you must update your license dongle. Send your C2V to [email protected]. For further information, refer to Retrieving a C2V File and Applying a V2C File.
If you need to renew your contract and are interested in version 2025.3 .1 contact [email protected].
File Versions
VStitcher 2025.3.1 and Lotta 2025.3.1 both support files created in earlier VStitcher and Lotta versions.
Version Support
With the release of VStitcher 2025.3.1 and Lotta 2025.3.1 the company's support is the following versions of VStitcher and Lotta:
2025.3
2025.2
2025.1