Hi Jerome,
I avoid any special “cases” in my file names, based on trouble I had while working for a couple of years in Package design, and had to send files around the world. Just use letters, and while we are at the theme of naming, would you mind to place your initials to the files, thanks. I even avoid empty spaces in my files. Somewhere is always a server who can’t deal with it. For safe productions, I keep it that way. Thanks. It helps me, as I often “repair these names first. Old habit, based on trouble in the past. You will not find such naming in studios here in L.A. (AFAIK ;o)
To your file, I have set it up from scratch, following the X+ direction in your file, in the tutorial I had it on X-, but it should matter that much, if at all—for the problem here.
The manual now states that setting up the projection to Cube, and Front/Back is the way to go. Well, by doing so, everything works here already. Well NOT really. If you go with the Plain Effector as far as one element is only 90º rotated, you can see how the projection is stretched. I checked in r15 and in r16 and I get stable results that way. (See image)
The Stick Texture Tag doesn’t prevent the Stretched texture effect while it “flips”, which I think is an artist call—if one can accept this or not. I don’t like it at all. Not an option for me, except the flip is fast and un-noticeable.
In short, I think something is wrong with the “Alternate Y” option. To prove that point, I have rotated one image around 180º and used the “Alternate X” option, and all of the sudden it works. I would appreciate if you get in contact with the support and share your file, thank you. (See preview movie or the file itself.
Have a great weekend
Sassi
https://www.dropbox.com/s/n8s41zumfv9jr9y/CV2_r16_drs_14_MGxy_01.zip?dl=0