Search Issue Tracker

Fixed in 2021.2.X

Fixed in 2020.3.X

Votes

0

Found in

2019.4.23f1

2020.2.0a9

2020.3

2021.1

2021.2

Issue ID

1330830

Regression

Yes

Unity lightmap UV generation fails with "Uv unwrap failed with no error messages" error when reimporting asset

Progressive Lightmapper

-

Reproduction steps:
1. Open attached project "LightmapUVs.zip"
2. Observe Console window, check for errors
3. In Project window, select Assets/3D/Strip_N.fb, right-click and Reimport
4. Observe Console window, check for errors
5. In Lighting window, attempt to bake lightmaps

Expected result: No errors after steps 2 and 4 and you're able to bake lightmaps
Actual result: "Uv unwrap failed with no error message", "Error in uv Unwrapper: Process might have crashed", and "uv-unwrap failed for mesh" errors after steps 2 and 4, unable to bake lightmaps

Reproducible with: 2020.2.0a9, 2020.3.6f1, 2021.1.5f1, 2021.2.0a5
Not reproducible with: 2018.4.34f1, 2019.4.25f1, 2020.2.0a8, 2021.2.0a6, 2021.2.0a15

  1. Response avatar

    Resolution Note (fix version 2021.2):

    Fixed in 2021.2.0a6

  2. Response avatar

    Resolution Note (fix version 2020.3):

    Fixed in: 2020.3.21f1

Comments (1)

  1. Fc0ee06cae627d3c7252bf4b60755976?d=mm

    Foreverplane_

    Oct 21, 2021 11:58

    There is no 2020.3.21f1 in download archive =(

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.