The thing about CS is one party has to REQUEST the adjustment, unless they mutually agree to it outside of court. These are requests that are being pushed through the court and it looks like there are responses filed in behalf of HP, so they weren't all mutually agreed upon. It says they were able to resolve the 2018 dispute through mediation in 2019, but there were multiple continuance filed after that.
This is interesting: 08/18/2021 Stipulation (to Take Pet's RFO Set for 8/25/21 Off Cal )
Filed by Petitioner. JW filed a stipulation to remove the hearing from the court calendar on his request for modification one day after she was last seen. It looks like that hearing wasn't scheduled to take place until 8/25.
I'm assuming this is what he tried to discuss with her the day after the football game but got no response. I wish these documents had previews without the fees so I could actually read them.