Yes, that T_White texture problem was raised before and hopefully the next version of Chameleon will fix this. However, this is the first time someone reports a problem about effect ordering. Can you share your engine version with me, please? Also what’s the most bottom effect name in Details tab? (for knowing your Chameleon version as well).
And as a general note; please try to remove Chameleon Post Process local content by Epic Games Launcher, re-download and re-import again as a first option to try.