I tried applying slowdown fix for USA ISO and it worked for first battle. After the second battle, it crashed. I applied slowdown fix before applying my patch and noticed that text patching takes longer. Maybe that caused it?
No, it's the text patching. A known issue for WotL. You need to change the "unit turned into crystal/treasure" lines.
Thank you. I've fixed my mod here. I'd be delighted to hear your thoughts about my project for further improvements. :)
http://ffhacktics.com/smf/index.php?topic=11872.0