SUMMARY The Document Preview plugin UI just says "Preview not available", without hinting the problem of missing KMarkdownWebview. STEPS TO REPRODUCE 1. Open Kate 2. Enable Document Preview plugin from settings 3. Create a markdown file, *.md 4. Create markdown text, and open Documente Preview tool view OBSERVED RESULT "Preview not available" EXPECTED RESULT "Missing kmarkdownwebview...", in case a required software dependency is missing. Maybe in the "Diagnostics" view, or something SOFTWARE/OS VERSIONS Operating System: KDE neon 5.27 KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.111.0 Qt Version: 5.15.11 Kernel Version: 6.2.0-33-generic (64-bit) Graphics Platform: Wayland Processors: 16 × 11th Gen Intel® Core™ i7-11850H @ 2.50GHz Memory: 46,7 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics Manufacturer: LENOVO Product Name: 20YRS21300 System Version: ThinkPad P15 Gen 2i
The preview plugin is not maintained, if you want to have this improved, please submit a merge request, otherwise that will stay the way it is at the moment. https://kate-editor.org/join-us/ I am sorry that does create issues for you, but the only other fix would be to remove it.
(In reply to Christoph Cullmann from comment #1) > The preview plugin is not maintained, > but the only other fix would be to remove it. I recently discovered that Okular with auto-refresh works as well, or even better, since you don’t need to switch to tool view side panel. So can live with the removal, too.