Hello, I have made a few projects over the years. I'm 56 and started making Tandy leather projects for myself back in the 70's. Recently I made a fold over type holster from 12ish oz leather. I cut the leather out then dyed it with pro dye (black) let it dry then started stiching it. the darn leather started cracking. Just the surface about 1/16 deep, everywhere I would bend it it cracked. What happened? The leather was a new piece I had bought from the Tandy store.
thanks, Jim