CR3 files suddenly not working after updating Bridge to 11.1

I have a Canon R5 - all been working flawlessly until this new update. Bridge no longer shows me thumbnails despite refreshing, changing 'view' etc. I then decided to drag one of the files into PS and its saying it doesn't recognise the file type. 

Initially I thought maybe my card had corrupted but it won't open any of my previous files now either. 

Can someone help? This is my main source of work. 

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