Issues growing Slc Jillian Lee

[Paul]

Getting quite aggravated with this little bugger. I've had it at least 3 years now and it repeatedly aborts new growths though it keeps trying to put out new ones. New growths often get to be about an inch or two long before turning brown and dying. Doesn't matter what time of year. Catts are usually pretty brain-dead easy for me.

It only gets watered with RO water. It sits on a plant stand in front of my unobstructed SE sliding glass doors. Leaves are a medium green so I'm sure it is not a matter of too much sun. Summer temps can be in the 80s F by day and low 70s by night. Winter temps are typically low-mid 70s by day and upper 60s by night. It is potted in a mix of large grade coconut husk, charcoal, and hydroton. My other catts do just fine.

Anyone out there growing this one?