Review on 🎨 3M PPS (Original Series) 16114 Mini Paint Spray Gun Cup Lids and Liners Kit - 6 oz, 200-micron Filter - Ideal for Cars, Furniture, and Home - Includes 50 Disposable Lids and Liners, 20 Sealing Plugs by Trevor Garrett

I never had a problem with it until my last order! For some reason they aren't shaped properly, when I start spraying the liner pops up and makes a mess! I always make sure the lid is tight, so I figured it was me who didn't tighten it. So I poured the rest into a new set of liners, closed the lid tightly and again the liner opened when I pressed the spout. I tried making a new batch, a new set of liners and another cup to see if that was my cup. But the same problem never appeared again. Please formulate them correctly.