I Was Wrong, this does not work
Ok, after giving this a break for sometime, I revisited and reread the logs. I have found the location of this failure. It comes from the base c++ code this is generated by Unreal Engine in a fresh c++ project (which is likely why I didn’t find it initially). Anyways, the error happens in the GameMode.cpp that is generated for you project, when it tries to load the BP_Class for either your Character or Controller, if you try to use a widget that uses MVVM ViewModel in either of these classes it will fail to load the MVVM for the widget. I assume this is due to when it loads these classes.
As I use a BP version of my Gamemode in my game I don’t need to set these defaults, so I just removed the code and all is good now. The offending code was this:
// set default controller to our Blueprinted controller
// static ConstructorHelpers::FClassFinder<APlayerController> PlayerControllerBPClass(TEXT("/Game/TopDown/Blueprints/BP_TopDownPlayerController"));
// if(PlayerControllerBPClass.Class != NULL)
// {
// PlayerControllerClass = PlayerControllerBPClass.Class;
// }
This might need to be fixed, as this is kind of an obscure issue that effects this plugin.
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My Solution did not work, it only worked because I removed the BP reference from gamemode, when I added the reference back to the BP Gamemode, the samething happens. I Would love a solution to this issue.