Technical Issues

Crashes, display issues, GPU, background processes, file import errors

Reinitializing Lychee Slicer
Reset Lychee Slicer to a fresh state to fix display, performance or unexpected issues Reinitializing resets Lychee Slicer to its default state, as if i...
Thu, 5 Nov, 2026 at 12:09 PM
Lychee Slicer Won't Open, or Shows a Blank or Grey Screen
What to do if Lychee Slicer doesn't start, stays grey, or the build plate is missing, often after an update If Lychee Slicer doesn't launch, sta...
Thu, 5 Nov, 2026 at 12:12 PM
Lychee Slicer Says I'm Offline, "Session Expired" or "Failed to Fetch"
What to do when Lychee Slicer can't connect to our servers These messages mean Lychee Slicer couldn't reach our servers to log you in or sync yo...
Tue, 10 Nov, 2026 at 10:41 AM
Windows Firewall Blocking Lychee Slicer
Fix Send & Print or license problems caused by old firewall rules after an update Signs of the problem Send & Print stops working after an ...
Thu, 5 Nov, 2026 at 2:51 PM
How to Get Your Lychee Slicer Logs
Collect the log files our team needs to investigate a crash or bug Logs record what Lychee Slicer was doing when a problem happened. They help our deve...
Thu, 5 Nov, 2026 at 2:51 PM
"WebGL 2 Not Supported" Error
Fix the startup error that stops Lychee Slicer from displaying 3D Lychee Slicer uses WebGL 2 to display your scene and models. If your computer can'...
Thu, 5 Nov, 2026 at 2:51 PM
Zoom Not Working With a Mac Trackpad
Get pinch-to-zoom working on a MacBook trackpad If zooming doesn't work with your trackpad, turn off Use Multi-Touch Gesture in File → Preferences ...
Thu, 5 Nov, 2026 at 2:50 PM
3D Mouse (3Dconnexion) Support
Using a 3D mouse with Lychee Slicer 3D mice, such as 3Dconnexion devices, aren't supported in Lychee Slicer at the moment. Bringing support back wou...
Thu, 5 Nov, 2026 at 2:50 PM