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Won't Fix

Votes

12

Found in

2019.4

2020.1.7f1

2020.2

Issue ID

1283280

Regression

No

Prefab preview thumbnail is black when importing big amount of Assets

Asset - Database

-

How to reproduce:
1. Open the attached project "case_1283280.zip"
2. In the Project window, select Assets then Search by Type and choose Prefab
3. Reimport all Assets (Select All->Reimport)
4. Observe the Prefab thumbnails
5. Delete some prefabs
6. Reimport all Assets (Select All->Reimport) again
7. Observe the Prefab thumbnail
8. Repeat 4-7 steps
9. (Optional) Reimport assets dividing them into 3 parts and then reimport all

Expected result: Prefabs thumbnails are shown white
Actual result: Some Prefabs thumbnails are shown with black texture

Reproducible with: 2019.4.12f1, 2020.1.8f1, 2020.2.0a1, 2020.2.0a17
Not reproducible with: 2018.4.28f1 (because it uses Asset Database v1), 2020.2.0a18, 2020.2.0b6, 2021.1.0a1

Note1: While doing steps and observing thumbnails it's possible to see that prefabs that are affected change, and are not consistent
Note2: In videos, you can see different types of reimporting happening, proving things said in Note1

  1. Resolution Note (2020.2.X):

    Fixed in 2020.2.0a18

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Comments (3)

  1. JasonBSteele

    Jul 22, 2021 15:29

    This is still an issue in 2020.3.9f1!

  2. FlightOfOne

    May 19, 2021 23:45

    No it is most definitely not fixed in 2020!

  3. Ankama-Unity-9

    Dec 15, 2020 10:21

    Will this be backported down to 2019.4 ?
    AssetDatabase V1 has been deprecated but V2 is not usable because of this bug.

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