I have just upgraded to SPPagebuilder (I didn't realise it was a major upgrade) and its broken loads on my site:

1. All custom css in all my custom templates deleted
2. Carousel addon no longer loads
3. Does not work with engage box - I have buttons that trigger engage box popups these no longer do anything

The above are the issues I have identified so far.

Is there a quick fix for the last 2? as guessing the css is just lost now and needs to be re-added?

I just uninstalled SP PAgebuilder Pro via extensions then re-installed version 3 which has brought my site back for now until the above issues are fixed. Will there be any problem from doing this I may not be aware of?

UPDATE: it deletes every single module created in SPPagebuilder!