Why does it happen?

Interior Bead Missing - 99% of the time it’s from the bead not getting closed tight enough at the installation. To prevent this, squeeze the bead shut 3-4 times and throughout the entire bead until you see the silicone coming out of both sides. The other 1% of the time, it’s due to there not being enough hair in the bead or rapid shedding in that area.

Edge Undone - Usually occurs when it is not sewn correctly and/or not secured correctly. Always do 3 knots. It could also be due to aggressive brushing, which means you need to explain home care to your client again.