Just saying if you trap the Carchar it can sometimes bug out and not eat the corpses you give it then you have to go out of render of it and back in to make the glitch stop. I tame a Carchar by getting a really tanky tame then whistle passive then let the Carchar attack it while you get the corpses if you didn’t cryo one of your tamed creatures and threw them out already then you just feed the Carchar withought it lagging. This is how I tamed my first Carchar so I hope this helps and I know it’s rather late to type this but I just thought why not.