4.2: fiels order in the engine is not the same from one engine to the other within the same ctnlist - probably due to a mulilang issue

Two lang activated on my site (in fact three lang setup but one unactivated): FR and DE - FR is mandatory. EN is unactivated.

Brwosing the site in French (default lang) when updating existing engine (top nav bar) I have sometime the page field which is launched as the first field and sometimes, in the same ctnlist, the select feild for the color. C scressnshot. Certainly an issue with multilang options and if the field is initialized or not in the second lang or not.... or something similar. But quite confusing for the end-user as the fields order may change from one container to the other.