Shape Key / Morph Targets #
The export of Shape Key works from Blender out normal meadow Without any problems, but sometimes nothing happens after starting the animation. This can happen if “Apply Modiefier” was selected in Blender during the export and there is a SubSurf Modifier on the object with the shape key, for example. If this is applied by the export, which is not possible manually within Blender, the number of animated vertecies no longer matches the current number.
On the one hand, the Subsuf Modifier can be easily deleted, but usually you have not added it without reason. Delete shape keys, apply Subdivision Surface and create them again.