The steps listed to dump the Example EBE Resource Pack Files doesn't work at all on 1.18.2... I downgraded to 1.18.1 and it worked fine... A dev on another project mentioned that there were changes to how resources are reloaded in 1.18.2, maybe that will help you.

I tested with only the following loaded...
EBE v0.6 1.18.2
fabric-api-0.48.0+1.18.2
modmenu-3.1.0

Could be why there are some issues with resource packs that change what EBE changes as well.

I do hope that gets fixed, as custom sign models were a huge bonus.

Dedicated solution added as of latest commit

Signs ignoring models definitely is also fixed (#79 is, however, still an issue):