BoxFilePreview SDK 1.1.4 doesn't load previews for non-image files

github "box/box-ios-sdk"
binary "https://github.com/box/box-ios-preview-sdk/releases/download/v1.1.4/previewSDK.json" ==  1.1.4

# 3rd Party SDKs
github "SnapKit/Masonry" ~> 1.0.1
github "jdg/MBProgressHUD" ~> 1.0.0

When we send up a file to the preview SDK it will show images fine, but any pdf, ppt, excel, etc won't show and say "preview not available" in the UI.

There is no error in the console.

The example project on https://github.com/box/box-ios-preview-sdk works, but it is using an older 1.1.0 version of the preview sdk.

-Matt