Hello! Iāve had this cactus for nearly 3 years now and in the past few months itās started to look a little worse for wear. I did just repot it for the first time (I know I shouldāve done it sooner) and Iām propagating one of the leaves in case this is the end for it. Itās got these light brown spots and cracks on one side and the base looks dark brown. The leaves are also pretty wrinkly (which used to only happen when it was underwatered but now itās always like that). Is it root rot?