Some time ago I noticed that some of my files were not being marked as "active" in the project's tree in the Project Manager panel. Some of them were -- when I clicked on document's tab in the main editor screen, at once it was highlighted in the tree. Some weren't, and I couldn't pinpoint exact reason for it. Was it highlighter used (i.e. extension)? No, it was not. It seemed completely random.
I think I've just found it out. Namely, if I open a file by clicking on a project tree, such file will be marked as active as expected. However if I search for a filename in the panel's fuzzy search form and then open such file by using Enter key, it will be opened, but the indicator in the project tree will stay at its previous position and if I later click on that file's tab, will not "follow" it in the project tree.
Project's file open via search not marked as active in project's tree
Project's file open via search not marked as active in project's tree
Alium tibi quaere fratrem; hic, quem tuum putas, meus est. Titus Flāvius Caesar Vespasiānus Augustus