64 Squares and Frrf initially scheduled on Tuesday. Frrf cancelled that within 30 minutes and suggested the following day at that time. 64 Squares replied about an hour after the suggested time, wanting to play in 10 mins. Frrf declined. Frrf later said they were free on Saturday. 64 Squares said next week probably, but maybe Saturday. Frrf then said in the morning before the deadline, they were free for the rest of the day. Since there was a week gap without arranging anything, I'm going to flip this, but it's disappointing 64 Squares hasn't replied recently.
Rhmsitb and Rodriblutar finally scheduled for Saturday after some delays and impatient scheduling. Rodriblutar said they were online 2 minutes before the scheduled time, but there's no record of what actually happened afterwards.
I will wait a bit to do the flips and aim to start the next round tonight in BST.