Please upvote this post here: https://support.box.com/hc/en-us/community/posts/21413908330003-Preview-does-not-load-and-file-s-cannot-be-downloaded
Hi Gabe,
Welcome to Box Community and glad to help!
We're sorry for your trouble and please note that our Engineering team has identified this issue and updates are posted here!
Thanks for posting!
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