Which registers sequences/tests should we run for verifying completely registers functionality?

I have one more question let’s say DUT having bug writing data on Address A1 register ,while reading from Address A1 is not getting same data ,but while reading other address A3 at same time we able to read same data which we write on Address A1 register
So to verify this issue is it required to write on A1 and followed by read of all address to catch this issue ?