Showcase size limited to three tracks

my Wikiloops profile showcase size is limited. I can flag tracks with a yellow star, then they appear in the showcase, when the showcase is empty. But after "star"-ing three tracks, even if I flag more tracks with an star, they don't appear any more in the showcase. When I de-star tracks, suddently others appear in the list (which were star-ed before), but others disappear. I cant find a way to have more then three items in the showcase.

help is appreciated

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