Bug Report: Spec Band (Rect) Not Rendered on Variability Chart Problem Description

[#1]

I'm having trouble with my script. Please help me identify the errors and do modification in my script 

1. Issue with spec range: The green specification band (colored rectangle) is not displayed on the Variability Chart. 

2. Adding multiple X factors: How should I modify script if I want to include multiple X factors?

[#2]

If there is a bug to report, please contact JMP Support.

[#3]

And fixing the script (looks like some jsl I have written some time ago), I would assume you have to fix COMBINEX formula

dt << new column("COMBINEX", Character, Nominal, Formula(:TYPE ||Char(:MBB)));