Unity Issue Tracker - Fatal Error "Callback registration failed. Increase kMaxCallback." when playing multiple random audio sources rapidly
Fixed
UUM-82788
Fatal Error "Callback registration failed. Increase kMaxCallback." when playing multiple random audio sources rapidly
Unity: Audio Authoring
Fixed
6.0.X
6000.0.0b13 onwards
Won't Fix
6.1.X
Fixed before version branch off
Fixed Fatal Error "Callback registration failed. Increase kMaxCallback." when playing more than 128 audio sources with AudioRandomContainers simultaneously
How to reproduce:
1. Open the attached “IN-84892“ project
2. In Hierarchy select the “AudioPlayer“ GameObject
3. In the Inspector check the 'Should Play Random' field
4. Enter Play Mode
5. Wait and observe the “Fatal Error” window
Reproducible with: 6000.0.0b13, 6000.0.21f1
Not reproducible with: 2021.3.44f1, 2022.3.48f1, 6000.0.0b12
Reproduced on: Windows 10 (user), Windows 11
Not reproduced on: No other environment tested