Sounds like the battery is coming loose, try screwing the back on a little tighter. Or put a little piece of paper to hold the battery in tighter when you put the back on.
Not sure if this is the exact place for it but I’ve never seen anything about this posted online before.
I recently learned that the Entama has an animation when your adult tamagotchi leaves you with a new baby.
it happened shortly after midnight, I only noticed because I checked both...
Generally for me it's simple boredom, I run them for months and then I'm left there like "what now?"
So the best thing for me is to take a break and step away to other things for awhile, it makes it more exciting when you pull them out again!
Hey! This will be my first hatch on here!
I'll be running my blue entama and I have a new baby on it, it's a girl in the mame group.
Later On I will add some photos
See you later!