Verify that item identifiers are unique.
<img id="images" />
will generate several elements with the same identifier in the loop, which is invalid. Try adding a loop index to the id and create unique identifiers for your elements. So the resulting HTML will be something like
<img id="images1" />
<img id="images2" />
<img id="images3" />
Edit
$('#images').tooltip();
to
$(".thumbBorderFac").tooltip(); // class selector returns multiple elements with the same class name
.
<ul class="row list-unstyled" id="imageContainer">
$("#imageContainer").find(".thumbBorderFac").tooltip();
ID ( "#id" )
( ".class" )