Were you using https://ankiweb.net/shared/info/1898790263 to enable controller support?
if that is the case then here is some know issues of the add-on
- Interaction outside of the main window (especially the browser and preferences) is only partially implemented
- Clicking outside Anki or in the title or menu bars doesn’t work
- Add-on doesn’t function in the profile window
- Can’t open or close webview context menus
- 8BitDo controllers should be set to X mode, but D mode might also work. More info here
- If your 8BitDo controller isn’t detected correctly try Tools > Controller Options > Detect 8BitDO Controllers
- Customize Keyboard Shortcuts - a small number of actions rely on simulating a key press, and won’t work if you’ve changed that shortcut. Instead you can create a custom action in the controller options using your assigned shortcut
it will be better if you could detail more in Contanki [Official Support Thread]
If it isn’t solved by the support thread, then create an issue over Issues · roxgib/anki-contanki · GitHub
in case you aren’t using the add-on, maybe use that for better integration with the controller