I used Organize/Colors to color code email in my Inbox. All works fine except that any email from one particular person, John Hill, is colored olive no matter what I set the color to. Trouble is, I use olive for a different set of senders. I need his to be teal. It worked correctly for a week or so, but now no matter what I do, or how many times I try to change it, it always stays olive.
It sounds like your “olive” rule has a condition set which also applies to your “teal” rule. If this is the case, changing the conditions or the sorting order of your color coding rules is very likely to solve your issue.
You can organize your color coding rules in;
View-> Current View-> Customize Current View…-> button Automatic Formatting…
To read more about color coding your email, this guide will probably be helpful.