I don't know what the problem is but both joomla and the module develop directed me to shape 5 to fix the problem. They told me it was a template problem.
I was telling you about he breadcrumb position just to let you know what position the module was assigned to.
I'll post some pictures showing you when the module is published and when it's not. Everything was working fine until the last joomla update.
Now when the module (slideshow ck) is published it only show a small line and it ''block'' the menu. The template look weird (you can see that the 3 small bloc are not equal).
When it's unpublished everything work correctly (but we don't have the slideshow obviously so it doesn't fix the problem)www.civa.qc.ca
if you wan't to take a look at it.