Rebinding keys not staying after play session

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Recently during the latest patch some of my keybinding got revered to default. After changing them back most managed to stay except for my scanner keybind. I have it set to toggle rather than hold and I have it set to the TAB key. When I shut down the game and then turn it back on that particular key continues to revert back to hold. Is this a known issue? or can I do something on my end to fix this?
 
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