Camera not formatting CF cards

I have 4 Compact flash cards one of which was in the camera EOS 40D and was working

I removed the flash card to transfer data to my Win 11 when i replaced the flash card back into the camera there was a message "CF card not formatted Format card with this camera" which i did and another message "Cannot format change the CF card" which i did.

Still the same messages

I then formatted all 4 cards through the computer and got the same messages on all 4 cards

The cards are

Canon FC-32M, the original card

ScanDisk 256MB

Extreme 128GB 120MB/s which was the card i was using in the camera

Extreme Pro 32GB 160 MB/s brand new

I have checked the pins in the card slot and they are fine

My feelings are that its the camera or camera soft/firmware as the new card should have just slotted in

Any help i would be grateful