Check to see if the .material files for the canine model, such as cmain and cmarkings, have been edited for Tearless's mod. You'll find them in FeralHeart>media>materials. If they have been changed, you could either try finding a download for those files, bring them in from your other FH folder if you kept the old one like I did, or just edit them yourself. Make sure the names of the textures in the .material files match the names of the textures you're trying to use, just like you would a preset. I'd save reinstalling for a last resort.