This could be nonsense, just someone out to have a go at Craig but it makes for interesting reading...

The source added of curmudgeonly Craig’s return, “Everyone on the production side detests working with Daniel, he’s so difficult and makes things impossible. But [Bond producer] Barbara Broccoli thinks he walks on water, and only her opinion matters.”

It's claimed the screenplay is not complete.

A source close to Bond 25 said, “They don’t have a script, there’s no title, it is nearly five years since the last Bond. It starts SPOILER REMOVED but the rest of the script is still being worked over.

There are some potential spoilers in the actual link so if you don't want to know anything about the plot I recommend you don't read it.

https://pagesix.com/2019/04/25/theres-already-trouble-in-paradise-on-new-james-bond-set/

No love for Craig on set? You mean the guy that said he'd only return for the money? You mean he's not that grateful and is a bit difficult? I am surprised. :P