@ficdogg: yes, i have one camera tag.
I just ran a test, apparently, for an ignored reason, it's my c4d layout (dualscreen, with lots of tabs) that is causing the trouble.
@Beanzvision: i just made a screen video capture for both scenarii, that i can send you via your link.
1-first one is with my complex layout. You won't see it but it's a dualscreen layout): lut is updating to the first lut, and not only when i render the image.
2-second one is with a standard layout: and apparently, the choosen lut is not changing to the one on top the list in the lut file, and the render image is then correct (in that it include the choosen lut).
Cheers, Nelaton.