I downloaded your file, added the files to a blank ePub in Sigil and corrected a few minor issues. Neither Sigil's builtin preview nor it's 3 plugin renderers had an issue. I then tried it with ADE 4.5 and Thorium and again no problems. I then copied it to a Kobo Libra Colour and again no problems.
I find myself agreeing with @JSWolf that the Icecream Ebook Reader has issues and you should be contacting Icecream Apps tech support to report a bug.
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