OAB 12.1.5 - Is anyone else on 12.1.5 seeing an issue with the Calculation Methods Multuple of Cover

We applied 12.1.5 in August and did not see any issues in regression testing (though we found that we need to add more test cases in order to test for this issue in the future). We were trying to change a variable rate from Multiple of Coverage to Multiple of Compensation – simple change, never had an issue doing this in the past. When we processed the life event all the rates based on this variable go to 0.00. After further testing of the calculation methods we use, we have found that if creating new variable rates or standard rates