This is a fairly common weakness with this type of material. Especially when it's formed around tight shapes.
This video shows three ways to fix it, and then I do a repair of the original strip.
Big Clive
2024-11-06 18:10:30 +0000 UTCadrian
2024-11-06 15:40:46 +0000 UTCStuart
2024-11-06 09:44:42 +0000 UTCRonNona
2024-11-06 07:56:51 +0000 UTC