Our use case requires short looping videos on the app’s front screen. These videos include subtitles for accessibility, so they are delivered as HLS (m3u8) rather than MP4, allowing subtitles to be natively rendered instead of burned into the video. Since moving from MP4 to HLS, we’ve observed that video time segments (.ts / .m4s) are not fully cached between loops. When the video reaches the end and restarts, the same time segments are re-requested from the network instead of being served from cache. This behavior occurs even though: The playlist and segments are identical between loops The content is short and fully downloaded during the first playback No explicit cache-busting headers are present We have investigated available caching options in AVFoundation but have not found a way to persistently cache HLS segments for looping playback without implementing a full offline download using AVAssetDownloadURLSession, which feels disproportionate for this use case. Using Proxyman, I can clearly see repeated network requests for the same HLS time segments on every loop, resulting in unnecessary network usage and reduced efficiency. I would like to understand: Whether this is expected behavior for HLS playback? Whether there is a supported way to cache HLS segments across loops? Or whether there is a recommended alternative approach for looping accessible video with subtitles without re-requesting time segments?

I have created a Swift package build tool plugin for colour generation. The plugin takes two input files from a project or swift package and from them generates a new Swift file containing references to all of the generated UIColors. When building locally and when using Github Actions the plugin is able to generate the required file within the pluginWorkDirectory and the project that references it can then access it as an input file during its build process. However, when building my project using Xcode Cloud, the plugin appears to be unable to create the file, it fails with the following error: Error while generating colours Files encountered an error at '/Volumes/workspace/DerivedData/SourcePackages/plugins/GLA.output/GLA/ColorGeneratorPlugin/GeneratedColors/Colors.swift'. 2022-11-22T15:46:11.344345498Z Reason: fileCreationFailed 2022-11-22T15:46:11.344390826Z LLVM Profile Error: Failed to write file "default.profraw": Operation not permitted` This then means that the build of the project fails with this error: Error opening input file '/Volumes/workspace/DerivedData/SourcePackages/plugins/GLA.output/GLA/ColorGeneratorPlugin/GeneratedColors/Colors.swift' (No such file or directory) It appears that Xcode Cloud is blocking the creation of files in the pluginWorkDirectory, even though locally it can. Has anyone faced a similar issue? Is there anything I can do to make it work in Xcode Cloud?