Nope. I've had none of those issues. Collonil is a trust brand, recommended by Mulberry. The 1909 range is ore suitable for lambskin though, so I use that one *attached photo below* for a more delicate leather, and the normal Collonil waterstop spray for tougher leather liike smooth calf or grain leather.thanks, i's good to know that you're enjoying the pink LD!
Does the spray change the texture of the leather at all? I know someone who used some sort of waterproof spray (not specifically Collonil) and the leather on her bag changes, it also gathers dust and catches colour as well... but it may just be the brand she used.