Since this morning (2025/02/28 ~07:00:00 UTC+1, maybe earlier in fact), it is possible to set and queue for regular or event CoC, but when the countdown reaches 0, launching does not success (lead us to the puzzle resolution interface) after several minutes, stuck on the queue step.
No more than 2 players in each attempts.
Update 08:50:00 (same day) : I could play in a regular CoC (with more than two players) without any problem such as I described before.