Confirmed on 32-bit vista as well. Steps:
Add sprite.
Add family, add sprite to it.
Add family variable.
Add sprite2.
Add sprite2 to family.
Click sprite2 in the project bar.
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Construct 2 Check failure
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Check failure! This is probably a bug:
No instance value for instance variable
Condition: i != instance_values.end()
File: Projects\InstanceVariable.cpp
Line: 176
Function: class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > __thiscall InstanceVariable::GetInstanceValueStr(class ObjectInstance *) const
Build: release 78 (32-bit) checked
Component: Construct 2 IDE
(Last Win32 error: 0)
Also got a second error after clicking abort:
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Construct 2 Check failure
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Check failure! This is probably a bug:
Object texture leak: a texture is still loaded when cleaning up an ObjectTexture, check all textures released properly
Condition: gl_instances.empty()
File: Projects\ObjectTexture.cpp
Line: 41
Function: __thiscall ObjectTexture::~ObjectTexture(void)
Build: release 78 (32-bit) checked
Component: Construct 2 IDE
(Last Win32 error: 0)