Wireshark turning monitor mode off

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Hello I am trying to use monitor mode on wireshark I turned on the monitor mode by the following command

sudo iw <interface> set monitor flags fcsfail

which I confirmed using sudo iw dev that it is in monitor mode

However, when I start Wireshark it again changes to managed mode. There is no checkbox for monitor mode in Wireshark

I also tried using Wireshark through the command line - wireshark -i (interface) -I

But it says that monitor mode is not supported on the device, I am 100% sure it is supported.

Driver:ath9k OS: CentOS8

Any help would be appreciated.

Thanks in advance