what do you mean by break up?
As i see in the announcement thread they are all active and given always update to the community about the project.
Owh ok so you are referring in the hardfork that will happen in aeternity.
Yuppp that's what I meant, the hardfork.
What caused it?? Generally speaking, there could be a conflict between community and the development team...
The hardfork is not always caused by the conflict but it looks like in AE the hardfork has already deployed caused by the protocol needs some improvement. You must read it carefully and as far as i know AE has already done fortuna and minerva hardfork to improve the protocol.
If you are thinking if the hardfork means the team will be splitting just like bitcoin community and it's really wrong for you to think about that.
You must read these announcement
https://blog.aeternity.com/%C3%A6ternity-blockchains-first-hardfork-and-minerva-release-3efbbe39a723https://blog.aeternity.com/the-fortuna-hard-fork-coming-in-june-d96786043bb6Those updates have been giving improvements to the platform.
there will be no conflict in AE. hardfork is needed when you have agreed with the community to deploy the improvement proposal into the protocol.
I also read an article says that AE handover governance to the community after LIMA hardfork.