I may have broken my WFA 3.1 install. I was working on a command block and when I attempted to discover parameters I got an error. I decided to check and this now happens with every code block, the ones I have created and the certified ones.
If I select designer --> commands --> Modify Volume --> edit --> discover parameters I get the error seen below
If you cant see the image it says "Parameter Type 'ActionPreference' is not supported.