Some of the rule above/below settings of the GenTokens option mentioned in the message text refer to stroke styles(s) that are not (no longer) part of the current GridTemplate's list of stroke styles.
➢The present message will specify the stroke style name and the index of the special case that caused the present message.
Solution:
•Change [GenTokens] Options: Opens the GridOptions property editor so you can select another stroke style.
Topic 185965, last updated on 08-Jul-2021