Max Label Width Value Is Abnormally Small

AppleScript Dialog Toolkit
#1

The command max width for label returns an unrealistically smal number when I supply it a list of 14 strings.

This code returns the measly 4.5 pt

set MaxLabelWidthParams to {"Playable on Apple TV 1st and 2nd gen.", "", "Creates a bitmap image file that contains raster graphics", "Creates a Virtual Reality movie for fast downloading", "Creates a QuickTime movie for streaming from a web-server", "", "", "", "", "", "", "", "Creates images from a movie frames and puts them in a separate folder", "Creates a text file needed to enable additional web-site content via URL in Safari"}
max width for labels MaxLabelWidthParams

…while the result of

set MaxLabelWidthParams to {"Choose a person", "Choose a company"}
max width for labels MaxLabelWidthParams

is ~120 pt. Why? Does the command accept more than 2 list members?

#2

It returns 490.82568359375 here.

#3

The variable returns 4.5 being defined as a property in my original script. It returns the correct value when set as a standard (local?) variable as in my OP. This subtle difference slipped my focus.

#4 
use script "Dialog Toolkit Plus" version "1.1.2"
set MaxLabelWidthParams to {""} --{"Playable on Apple TV 1st and 2nd gen.", "", "Creates a bitmap image file that contains raster graphics",  
max width for labels MaxLabelWidthParams

FWIW, this returns 4.5

#5

The part that misrepresents the maximal width goes as following:

property MaxWidthLabelParams: {}

#{} is then populated by text items through a loop to arrive at {"Playable on Apple TV 1st and 2nd gen.", "", "Creates a bitmap image file that contains raster graphics", "Creates a Virtual Reality movie for fast downloading", "Creates a QuickTime movie for streaming from a web-server", "", "", "", "", "", "", "", "Creates images from a movie frames and puts them in a separate folder", "Creates a text file needed to enable additional web-site content via URL in Safari"}

property MaxWidthLabelValue: (max width for labels MaxWidthLabelParams)

This value is 4.5. However, when I repurpose both of MaxWidthLabelParams and MaxWidthLabelValue as local variables (local to the implicit run handler) I get the correct 490 value.

I sense I miss something. I verified that 4.5 is the width of the string “{}” assigned to MaxWidthLabelParams which the command takes as in max width for labels {} but don’t quite understand why the second action (looping) has no effect on its value.

#6

The problem is somewhere in your code we can’t see.