Copying test from within a task description doesn’t keep its formatting anymore. So for example when you create a heading and a checklist, and try to copy it, then you will only copy the raw text and will not keep any formatting info.
The current stable release 0.24.6 from 6 months ago had it working, but on the latest unstable branch on try it doesn’t work.
This is now fixed in fix: improve markdown paste detection by kolaente · Pull Request #939 · go-vikunja/vikunja · GitHub, please check with the next unstable build (should be ready for deployment in ~30min, also on try).
Works perfectly again, thanks a lot for the fix!