The same bug always happens when I view a page for anything in the Minecraft Store/Marketplace, the amount of stars there are rated for something and the number of people that rated that content don't appear at all. This always happens by the way, so it's very easy to replicate it.d
Thank you for your report!
We're actually already tracking this issue at MCPE-60287, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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