Any ideas what would cause this? I dyed (Fiebings pro dye black)a bunch of pieces of veg tanned and the rest came out great but both pieces that I tooled and dyed

Noko's Leatherworks - New Orders On Hold

Uneven Dyeing!!!- could use advice : r/Leathercraft

DIY Leather Memory Book : 29 Steps (with Pictures) - Instructables

DYE DYE DYE – Armory Rasa

Blog — Gold Bark Leather

For use on vegetable tanned or unfinished leather Penetrates and dries uniformly Bottle Size: 32oz. FLAMMABLE Product can only be shipped to

Fiebing's Pro Dye - Red 32oz - Professional Oil Dye for Dying Leather

Fiebing's Pro Dye Black, 4 oz. - Professional Oil Dye for Leather : Arts, Crafts & Sewing

Fiebings Antique Paste and Resolene are awful and a waste of money : r/Leatherworking

The most recognized penetrating, alcohol-based leather dye in the world. Dries uniformly and mixes easily to create interesting middle tones.,

Leather Dye

Is dying veg-tanned natural tooling leather a lot harder than it seems? : r/Leathercraft

Leather Dyes Fiebing's Pro 118 ml: Black

Newbie Question: Fountain Pen Ink to dye leather? : r/Leatherworking