My system is doing this … but for me it only does it when attempting to ride with a pace partner.
Signed up for the Olympic chase event on Monday evening, and went to do a warm up ride with C, and kept locking up at the loading screen (but could hear the sounds of Watopia in the background … although the sounds for sitting by the roadside rather than being dropped into the PP group).
Cleared Internet Options, rebooted the maching, still the same.
WIth 10 minutes left to the start of the Olympic ride, tried again but just entering a normal ride on Tempus Figut, without the PP and loaded/ran perfectly fine.
Tried again last night just to test it, and got the same … stuck on the blue screen when attempting a PP ride, but worked quite happily entering a normal free ride.