Pre-conditions:

Decision table have 2 input variable and 1 output variable.

Steps to reproduce:

1. Create a decision report 
2. Select the Evaluation Count 
3. Group by Input Variable or Output Variable 

Problem:

The list of input/output variables are empty.

Expected behaviour:

Expecting that the input and output variable names in the list 

Hint:
I have checked the network traffic, received the following response for the input variable request. Variable name is null.

[{id: "Input_1", name: null, type: "Long"}, {id: "InputClause_0kxgyqs", name: null, type: "Long"}]
0: {id: "Input_1", name: null, type: "Long"}
id: "Input_1"
name: null
type: "Long"
1: {id: "InputClause_0kxgyqs", name: null, type: "Long"}
id: "InputClause_0kxgyqs"
name: null
type: "Long"