Search Issue Tracker

Fixed in 2017.3.0f3

Fixed in 2017.1, 2017.2



Found in


Issue ID




Editor crashes when examinating values in debugger with .NET 4.6



Usual reproduction steps:
1. Open a specific project in .NET 4.6.
2. Enter play mode or recompile scripts.
Result: Sometimes editor crashes (very low chance).

Stable reproduction steps (might be another problem but similar stacktrace):
1. Open project (
2. Open scene "Root"
3. Open script "Reflection"
4. put a breakpoint on line 20
5. Stepped to the next line
6. Try to examine info base values. (info/base/base and it crashes).
Result: Editor crashes steadily.

Reproduced on: .NET 4.6.
Works fine with .NET 3.5.

Comments (6)

  1. Ff74989fb6d1bfdddb3a0db308eea425?d=mm


    Sep 04, 2017 16:08

    This occurred very frequently for me. I'm not 100% sure, but after recompiling code in vs2017 and shifting back to unity, there is a momentary hitch when I believe unity is refreshing/reimporting. If I hit play before it does that or I have visual studio attached for debug, I think my chances of a crash sky rocket. Again, could just be coincidence.

  2. 1c1be0cc35d1a5cbbbb7a5825dda65df?d=mm


    Sep 04, 2017 14:09

    This issue will be fixed in future releases. Anyway, there might some other problems that might cause a crash with .NET 4.6. We have not fixed them all yet so if anyone encounters a crash, then make sure to report them with Bug Reporter and add reproduction steps if possible.

  3. 537d2a1daafc314e65c50a1ee9ea6e4a?d=mm


    Aug 29, 2017 11:58

    Same here, it's happening pretty frequently since updating to VS2017 and Unity 2017. However around the same time I switched to start using .NET 4.6 in my Unity Project -- so it's hard for me to tell which change is the cause of the issue.

  4. 2a4f6aecd17bc81ffe95489fce049d7d?d=mm


    Aug 23, 2017 01:25

    This happens quite frequently for me - Sometimes once every 15 minutes. Attaching the Visual Studio debugger might be making the issue worse, I guess.

  5. Ba1baa3f0bad1e109a59bfb6a609ba33?d=mm


    Aug 21, 2017 13:16

    This is happening pretty frequently for me!

  6. 672d1dd2e4aac99b5a0983b7eaf7f3aa?d=mm


    Aug 16, 2017 11:04

    I don't have anything helpful to add except it's not a very low chance, about 25% on two different projects I've been working on.

All about bugs

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