Block and Entity Wizards Don't Show in Export

I've been attempting to use Blockbench's entity wizard, and it's worked fine- until yesterday. The widget allows you to create your entity as normal, but you cannot export your entity into the pack as usual. The same is true for block wizard. I've uninstalled and reinstalled both the packs and Blockbench itself. I've attempted creating a new pack with the previously-created entity model, texture, and animations, but once loaded into the game, there is no behavior or animations.