My gen 1 tamatchi is now 9 years old and is still not growing. I've been time travelling regularly because of my erratic sleep schedule, even making it sleep the full time twice in a row. I assume this is what's causing this, but I'm just not sure.
My gen 1 rerelease tamatchi is now 9 years old and is still not an adult. I suspect the problem is that I've been time travelling a lot to change its sleep to match mine. I've made it sleep twice in a row before, and I'm worried that was what stopped it from growing.