** ERROR 1791 ** Tiger Stripe Instability Threshold must be positive and non-zero.
The Tiger stripe instabiity threshold is used to calculate the Flow front stability factor result. This threshold parameter is a property of the thermoplastic polymer material grade. A default value of 2.6 is assumed if the threshold input field is blank.
View the Tiger Stripe tab of the material properties. Study Tasks Panel > Right click on the material name > Edit... > Tiger Stripe
Enter a positive non-zero value in the Tiger stripe instabiity threshold field, or leave it blank for the default value to be used.