Another WGA module has this problem, from AH:
Which version of this module exactly? There appears to be a much improved Version 1.0.1 that has already had the custom code removed.
Sorry it this one
Located:
https://vassalengine.org/wiki/Module:Gettysburg:_125th_Anniversary_Edition
So the problem with Gettysburg 88 is that this version is the latest version of the G88 series.
G88v34.vmod https://obj.vassalengine.org/images/7/75/G88v34.vmod
Module (3.4) | 2.91 MB | 2021-04-11 |3.1.27|
But when you load it you get the Obsolete custom code warnings.