Crash on UnityObjectToString(Object*) when an object has a field with a type mismatch and an active Animator

Unity: Serialization

Open

6.4.X

6.0.X

Fixed

6.5.X

6000.5.0a6

Won't Fix

6.2.X

6.1.X

Unity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

How to reproduce:
1. Open the “IN-109521“ project
2. Open File > Build Profiles
3. Build and Run
4. Observe the build crash

Reproducible with: 6000.0.11f1, 6000.0.46f1, 6000.1.16f1
Could not test with: 6000.0.10f1, 6000.0.47f1, 6000.0.55f1, 6000.2.0f1, 6000.3.0a4 (Burst errors while building)

Reproducible on: macOS 15.5 (M1 Max), Windows 11
Not reproducible on: no other environments tested

First few lines of stacktrace:
at <unknown> <0xffffffff>
at UnityEngine.Object:ToString_Injected <0x00007>
at UnityEngine.Object:ToString <0x0007f>
at UnityEngine.Object:ToString <0x00063>
at System.Text.StringBuilder:AppendFormatHelper <0x0177f>

Crash on UnityObjectToString(Object*) when an object has a field with a type mismatch and an active Animator

Unity: Serialization

Open

Fixed

Won't Fix

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Crash on UnityObjectToString(Object*) when an object has a field with a type mismatch and an active Animator

Unity: Serialization

Statuses

Open

Fixed

Won't Fix

Resolution Notes

6.2.XWon't FixUnity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?