@ragnaroek good information, thanks. Seems more likely to be a Kodi issue. Would you mind adding your findings to https://trac.kodi.tv/ticket/17545 ? Being able to reproduce on Ubuntu may make the bug report less offensive.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.
