# Luban 4.0.3 bugs

**URL:** <https://forum.snapmaker.com/t/luban-4-0-3-bugs/21612>\
**Category:** Snapmaker Luban\
**Created:** [October 25, 2021, 8:28pm UTC](https://forum.snapmaker.com/t/luban-4-0-3-bugs/21612 "2021-10-25T20:28:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Robbins](https://avatars.discourse-cdn.com/v4/letter/r/f19dbf/32.png) [@Robbins](https://forum.snapmaker.com/u/Robbins)\
**Post date:** [October 25, 2021, 8:28pm UTC](https://forum.snapmaker.com/t/luban-4-0-3-bugs/21612/1 "2021-10-25T20:28:45Z")

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I have noticed some bugs in 4.0.3.

1.) while I can copy and create custom 3D print settings, after a couple of days (or closing and reopening Luban) , I can then no longer edit the custom settings. I need to delete the saved settings and create a new custom file. I can create new files, so I can print, but its frustrating.

2.) If I manually create supports then save the project, the supports are not saved.

3.) Sometimes the object in the workspace goes red for no apparent reason. To resolve the problem I have to reduce the size then increase the size again once the object is no longer red. After the object is back to the original size I can then generate g-code.

4.) Intermittantly, Luban will not send g-code to the printer via wifi until I close Luban and reopen the software, which can mean I need to re add supports if I manually created them (see above).