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Description
Describe the bug
The iOS TestApp fails to properly display EPUB files with vertical writing modes (vertical-rl and vertical-lr). No specific error logs are generated.
How to reproduce?
- Download test EPUB files:
- Japanese vertical writing (vertical-rl): japanese-vertical.epub
- Mongolian vertical writing (vertical-lr): mongolian.epub
- Open these EPUB files in iOS TestApp
- Observe the content display
Readium version
3.0.0
OS version
18.1.1
Testing device
iPhone 15 Pro (emulator) and iPhone 15
Environment
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Additional context
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