Here, a breakdown of what went down. No mention of red balls radio call but the rest is there.
https://www.formula1.com/en/latest/article.explained-understanding-one-of-the-most-chaotic-controversial-title.4B98awxwP7JPgBWxIt5KnL.html
How can Masi tell the teams one thing, then change his mind and tell them something else opposite that?
If he’s going to let lapped traffic unlap themselves, why just a few of them and not all of them?