It's a very strange fault, it's not visable until you put the tablet in to it at which point the crack opens up slightly, I took the case back and they said it looks like the case was very slightly too small and the plastic has cracked under pressureš¤·š»āāļø they replaced it with a new one so that's a good outcome really, I would add though, I contacted Samsung about it as you'd think it would be warranty replaceable, the guy I spoke to on live chat couldn't have been more dismissive if he tried, sayi g if have to return the tablet aswell to get a new caseš¤¦, I get your point about third party cases though, I think Spigen do cases for tablets, that's the one I have on my s20 and it's saved my phone on countless occasions.