I debugged and unminified the JS file frontend_blocks.js and found out that this is triggering the slide:
mousewheel: {
releaseOnEdges: false,
},
even if “releaseOnEdges == false” (in the gutenberg blog settings) the init method fires mousewheel = true.
deleting
i.hasAttribute("data-releaseonedges") && ((t.options.mousewheel = {}), (t.options.mousewheel.releaseOnEdges = i.getAttribute("data-releaseonedges"))),
from the JS, disables the mousewheel.
Need to check if mousewheel is enabled, if so, releaseOnEdges should be available in the init… if disabled, releaseOnEdges shouldn’t be loaded into the init method.