You are true…
I Idon’t think that setting the option “on” is a good choice, because in this case several selections (the ones in question) will be disabled (for example impooible to denoise !). I think it’s better to let the user discover which situation brings the artifacts and not to use .
But you can use also, the experimental branch “lagamcie” which offers an LA version of ciecam that is further upstream in the process (and which I hope will cause less artifact problems). This branch also contains a version of “Jzazbz” and others improvment (gamma Lab ==> linear, etc.)
I wrote a documentation (in french)
https://rawpedia.rawtherapee.com/CIECAM02/fr
Jacques