This malfunction state is hard to understand unless it is mobile display.
Please look at mobile display.
Please tell me why the carousel will stretch.
this is NG site
https://www.sub1.sifactory.net
this is ok site
Dont know for sure without seeing the file…but it does look like there are some different settings on the two site examples
It will be bad even if you rebuild it as many times as the initial value in the same project.
However, when you recreate it with a new project it will be in a normal state.
Hey its caused by the class left in your project, its reserved by bootstrap 3. Looks like you have a margin set at the tablet breakpoint and because the same class name is used by the bootstrap carousel its breaking the sliding animation.
I updated your support ticket with more details 
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