zzm88104
same error here. apple silicon MacBook Air. I have stucked for a month. No problem on my PC or my Intel chip Mac.
So there is problem with loading Houdini libraries through Silicon version of Unity. I've installed Intel version of Unity and looks like problem is gone. Silicon version of Houdini is currently in preview and has no Houdini Plugin support.
https://www.sidefx.com/community/h19-apple-silicon-tech-preview/ [www.sidefx.com]