Fix variables of nested macros' actions not being resolved

lib/macro/macro-action-macro.cpp

@@ -263,6 +263,7 @@ bool MacroActionMacro::Load(obs_data_t *obj)
 	if (obs_data_has_user_value(obj, "nestedMacro")) {
 		OBSDataAutoRelease nestedMacroData =
 			obs_data_get_obj(obj, "nestedMacro");
+		_nestedMacro = std::make_shared<Macro>();
 		_nestedMacro->Load(nestedMacroData);
 	}
 
@@ -309,6 +310,15 @@ void MacroActionMacro::ResolveVariablesToFixedValues()
 {
 	_actionIndex.ResolveVariables();
 	_label.ResolveVariables();
+
+	if (_action == Action::NESTED_MACRO) {
+		for (auto &action : _nestedMacro->Actions()) {
+			action->ResolveVariablesToFixedValues();
+		}
+		for (auto &action : _nestedMacro->ElseActions()) {
+			action->ResolveVariablesToFixedValues();
+		}
+	}
 }
 
 static void runActionsHelper(Macro *macro, bool runElseActions, bool setInputs,