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Fixed in 5.3.6



Found in


Issue ID




[UI?] After multiple m_size < k_reference_bit errors Unity crashes at FullParameterPreparer::OnPrepareTexture



Steps to reproduce:

1. Open attached project ""
2. Open scene "Assets/Scenes/GameScene"
3. Run it
4. Press TAB twice
5. Notice "m_size < k_reference_bit" errors start to accumulate and then Unity crashes

Note: Sometimes Unity crashes right away, other times it takes more than 50 errors to be printed before crash.

Not reproducible: 5.3.3f1
Regression introduced in: 5.3.3p1
Reproduced with: 5.3.3p3, 5.4.0b10

Comments (13)

  1. fogsight

    Mar 31, 2016 00:49

    Encountered this error after introducing Vector3.SmoothDamp to center main camera on UI objects calling a Coroutine with dozen of cycles and 0.1 second loop delay.
    Error pops-up seemingly random just during this activity, have not had any crashes yet.

  2. screenname_taken

    Mar 11, 2016 13:49

    I also have the same issue. 5.3.3p2.
    Tried clicking the error to see what is causing it, but the editor points at nowhere.

  3. Snorkel

    Mar 10, 2016 17:18

    I have the same issue. Crash after random number of
    "m_size < k_reference_bit" messages
    In 5.3.3p1

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