In AlgoWizard (Build 130.467), when you select 'Add new' in the 'Variables' window, highlight variable name and type a new variable name, then tab or click on next field to select variable type, and then optionally enter an initial value - If you then select 'Add new' to add another variable, the previously entered variable name is lost and replaced with the initial 'variableX' name.
The only way to retain a new variable's name is to click outside of all editable fields in the 'Variables' window to fully deselect the variable name field, otherwise, even if you select variable type and an initial value, the variable name will be reset to the default 'variableX' when you select 'Add new'.