Mathcad Prime crashes when I use absolute or Determinant function in IF statement

Hello All,

My requirement is simple I want to compare two numbers and I want the maximum value in return irrespective of its sign. This is how I tried in Excel if (abs(A)>abs(b),A,B) and it worked well.

I tried the same function in Prime3.1 and it crashes every single time I used it. One more thing what I've observed is, the IF statement is working fine when I haven't used Abs function or Determinant operator  in it. The real problem arrives only when I include Abs function in it.

Someone could please help me in resolving this issue.

Thanks in advance.

Regards,

Ashok