Hmm well i think that could be related to the color issue & the fix - though I thought i would have prevented it.
What I think the issue is related to is some regions use commas for decimals and where I am it's periods. So the save data is getting mixed up between the two and creating weird visual effects with the custom characters. If you're able, could you email me your save data? It will help me confirm the issue. I will try to find some time this weekend to re-work my previous attempt at the fix. It is a little hard to test because my computer might be working differently than yours... Thank you for all of your patience and feedback!