(Fabric Plugin) Why can't fence gates compile correctly?

Been stuck on this for a while. Can't get mcreator to make a fence gate without failing in the 1.20.1 fabric plugin. Screenshots below

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https://preview.redd.it/bqpaszu9pdab1.png?width=1503&format=png&auto=webp&s=f2ae19d65681fc01b64fce57f756a57b6eb2ca9e

https://preview.redd.it/7e5mm1v9pdab1.png?width=295&format=png&auto=webp&s=15caf5b08e036b036b4f5142146cb3eeb1e9ca75