Edit: 240319
I just now understand your problem.

Must delete or change shortcuts in Manage Extension Shortcuts.
check: https://imgur.com/a/DIpmWP7
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Updated to v5.5.1
- Add Shortcuts for mouse
- Add option to enable/disable fixed shortcuts

In option > enable shortcuts for > try to disable Fixed Shortcuts
If it doesn't work, try disable everything again.
Finally, if it still doesn't work. Try deleting in Manage Extension Shortcuts too

Reply to me again if there is still a problem.