After updating the sim (MSFS2020) and various aircraft (successfully) and I shut down the manager app. However, regardless of having shut down the app, the program was still running in the background using a significant amount of CPU power. The only way I could shut it down properly was to terminate the process in Task manager.
You have posted in the Navigraph Hub category, which is relevant for updating MSFS 2020 and MSFS 2020 addons.
You then refer to FMS Data Manager (which is relevant for non-MSFS and non-MSFS Addons), still running.
I’ve just tried it again - just started the manager and closed the window. Checked the system tray, found it was running there and shut it down in the tray.
Checking the task manager in windows (11) the data manager is still running in the background using some 3.5% of my CPU. The used “end task” in the task manager…