2 stranges things...

[shaka drl]

[Austin]

The first one ... most likely you are not checking values for errors when you get them from the core so something like

var whatever := SomeCoreFunction()
SetObjProperty(something, "PropName", whatever);

Between the two should be a check like

if ( whatever == error )
Print("Hum, not good! -> "+whatever.errortext);
endif

[shaka drl]

Mmmmmm i think there are too many setobjproperty to find the one bad...

There are no solution little more practice to solve this problme?

thanks

[innominabile]

For core developer, to insert prop name that give error in error message?

[CWO]

better yet possibly the script and PC?

[Marilla]

You should actually search ALL of your code for any SetObjProperty calls that do not appear to assure that the value being set is not an error, first. This is merely a symptom of one instance of a problem; You may have many other instances that just have not yet generated issues.