(actual version is shown as 16.04.3, but not available for selection) To reproduce: 1. Create a Mercurial repository 2. Add some files and commit 3. Observe that the committed files appear in the project tree 4. Rename or add some files but do not commit yet 5. Observe that any renamed files have disappeared from the tree, and added files are not shown either This is really frustrating. Personally I would much rather that Kate just showed everything in the tree view, rather than using the repository to hide untracked files. Thanks.
I am sorry if that behavior is not what you like. But that is the intended behavior. If you want to just list all things, please write a .kateproject that just collects all files recursively, like described in https://kate-editor.org/2012/11/02/using-the-projects-plugin-in-kate/