Prepending the "From Base" operation with the "Register" operation produces an error "Data is not a valid BigNumber".

Here is an example: https://gchq.github.io/CyberChef/#recipe=Register('(.*)',true,false,false)From_Base(16)&input=MHgyMGE

Expected output should just be 522. Removing the Register operation does not fix the bug, unless you remove it and then refresh.