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Visibilty code in model.def need GUID for P3D?

Does a Visibilty code in the model.def need GUID for P3D?
I know for FSX we never needed this. But i find only a few customers in P3D V4 and V5 the annunciator lights thast we hard code with no GUID will not work for them.
But the majority of the customers including the Flysimware team can't reproduce this issue. So i am wondering if a guid would help or what is the actual reason some users in P3D have missing vis tags?


Staff member
FSDevConf team
Resource contributor

Only animations have a guid in the modeldef file, so for a visibility condition you don't need one.