OK so I'm pretty new to shellac but I've been using for a couple of months now with no problems. I have had 3 clients recently with shellac peeling (no chipping) just literally peeling off the nail in one go! I'm prepping the nail and just can't understand why this is happening. Two clients had the same colour (blue denim) had anyone else had trouble with this colour? And another had wildfire. Also, am I right in thinking I don't need to use scrub fresh if applying to silk or acrylic overlays? Thank you