I saw your comment after I fixed the error in the preset's code, but thank you for posting the information anyway. I'm guessing the errors above the subroutine error in the log were the main cause of the Error 524 problem, but it could be that the preset was just so big that it took too long to spot the error and print the log. After all, Taishin Shogi's GC preset is the largest GC preset with full rule enforcement and display of legal moves that I know of (in terms of board size (25x25), number of piece types (232 in total), and number of lines of code (total is probably close to or over 1000 as of right now)).
I saw your comment after I fixed the error in the preset's code, but thank you for posting the information anyway. I'm guessing the errors above the subroutine error in the log were the main cause of the Error 524 problem, but it could be that the preset was just so big that it took too long to spot the error and print the log. After all, Taishin Shogi's GC preset is the largest GC preset with full rule enforcement and display of legal moves that I know of (in terms of board size (25x25), number of piece types (232 in total), and number of lines of code (total is probably close to or over 1000 as of right now)).