fix for #2311

[cNori]

replaced ASSERT with Platform::CheckFailed for now, the #2311 can be moved to 1.9

added a check and a massage

ps.
there is not real way to fix it in the sake what state is should be selected

[Menotdan]

Consider changing the message to be something like:

"Disabling the enabled state of an object in OnStart() is not supported.\n"
"OnStart() is called just before OnEnabled(), which expects the enabled state to be true.\n"
"See:\n"
"https://docs.flaxengine.com/manual/scripting/events.html?tabs=code-csharp\n"
"If you want to force the object to be disabled when the game is started, consider using OnAwake()."

[cNori]

i think now it is stable

[Menotdan]

"Modification of the Enabled state failed, state was modified before the object got a chance to call Enable().\n"
"This may cause unexpected behavior in your scripts.\n"
"See:\n"
"https://docs.flaxengine.com/manual/scripting/events.html?tabs=code-csharp\n"
"Note:\n"
"If you were trying to disable the object when the game starts, consider using OnAwake()."

Maybe a better message now? I tried to modify it less and keep the language more readable.

[cNori]

"Modification of the Enabled state failed, state was modified before the object got a chance to call Enable().\n"
"This may cause unexpected behavior in your scripts.\n"
"See:\n"
"https://docs.flaxengine.com/manual/scripting/events.html?tabs=code-csharp\n"
"Note:\n"
"If you were trying to disable the object when the game starts, consider using OnAwake()."

Maybe a better message now? I tried to modify it less and keep the language more readable.

look ok

[cNori]

OnAwake triggered it also in rare cases

new massange

"Modification of the Enabled state failed, state was modified before the object got a chance to complete Enable() call.\n"
"Note:\n"
"Try to not modify the enabled state in OnStart or OnAwake, if object is disabled when is spawned. this might interupt Initialization code\n"
"also this may cause unexpected behavior in your scripts."